./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-9.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-9.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 d798965d86660c5110959c1d057cdab017d50d3759f8bb695ae6218245b649d7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 05:14:05,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 05:14:05,578 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 05:14:05,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 05:14:05,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 05:14:05,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 05:14:05,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 05:14:05,616 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 05:14:05,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 05:14:05,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 05:14:05,618 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 05:14:05,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 05:14:05,619 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 05:14:05,620 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 05:14:05,621 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 05:14:05,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 05:14:05,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 05:14:05,623 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 05:14:05,623 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 05:14:05,623 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 05:14:05,623 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 05:14:05,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 05:14:05,628 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 05:14:05,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 05:14:05,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 05:14:05,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 05:14:05,629 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 05:14:05,629 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 05:14:05,630 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 05:14:05,630 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 05:14:05,630 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 05:14:05,631 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 05:14:05,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:14:05,632 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 05:14:05,632 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 05:14:05,633 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 05:14:05,633 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 05:14:05,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 05:14:05,633 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 05:14:05,634 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 05:14:05,634 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 05:14:05,635 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 05:14:05,635 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d798965d86660c5110959c1d057cdab017d50d3759f8bb695ae6218245b649d7 [2024-11-20 05:14:05,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 05:14:05,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 05:14:05,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 05:14:05,910 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 05:14:05,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 05:14:05,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-9.i [2024-11-20 05:14:07,400 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 05:14:07,603 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 05:14:07,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-ci_file-9.i [2024-11-20 05:14:07,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d306d3cf/ab38bb299bcc444999a91a347a5f97d7/FLAG0ecc84058 [2024-11-20 05:14:07,982 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d306d3cf/ab38bb299bcc444999a91a347a5f97d7 [2024-11-20 05:14:07,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 05:14:07,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 05:14:07,988 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 05:14:07,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 05:14:07,995 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 05:14:07,996 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:07" (1/1) ... [2024-11-20 05:14:07,999 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f38edf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:07, skipping insertion in model container [2024-11-20 05:14:07,999 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:14:07" (1/1) ... [2024-11-20 05:14:08,031 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 05:14:08,215 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-ps-ci_file-9.i[918,931] [2024-11-20 05:14:08,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:14:08,323 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 05:14:08,338 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-ps-ci_file-9.i[918,931] [2024-11-20 05:14:08,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:14:08,412 INFO L204 MainTranslator]: Completed translation [2024-11-20 05:14:08,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08 WrapperNode [2024-11-20 05:14:08,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 05:14:08,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 05:14:08,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 05:14:08,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 05:14:08,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,467 INFO L138 Inliner]: procedures = 26, calls = 32, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 226 [2024-11-20 05:14:08,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 05:14:08,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 05:14:08,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 05:14:08,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 05:14:08,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,493 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,517 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]. [2024-11-20 05:14:08,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 05:14:08,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 05:14:08,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 05:14:08,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 05:14:08,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (1/1) ... [2024-11-20 05:14:08,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:14:08,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:14:08,586 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) [2024-11-20 05:14:08,590 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 [2024-11-20 05:14:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 05:14:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 05:14:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 05:14:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 05:14:08,642 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 05:14:08,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 05:14:08,727 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 05:14:08,729 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 05:14:09,231 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-20 05:14:09,232 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 05:14:09,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 05:14:09,260 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 05:14:09,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:09 BoogieIcfgContainer [2024-11-20 05:14:09,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 05:14:09,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 05:14:09,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 05:14:09,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 05:14:09,294 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:14:07" (1/3) ... [2024-11-20 05:14:09,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d519f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:09, skipping insertion in model container [2024-11-20 05:14:09,296 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:14:08" (2/3) ... [2024-11-20 05:14:09,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d519f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:14:09, skipping insertion in model container [2024-11-20 05:14:09,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:14:09" (3/3) ... [2024-11-20 05:14:09,299 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-ci_file-9.i [2024-11-20 05:14:09,315 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 05:14:09,316 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 05:14:09,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 05:14:09,388 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;@55a620af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 05:14:09,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 05:14:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 97 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 76 states have internal predecessors, (113), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 05:14:09,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 05:14:09,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:09,416 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:09,416 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:09,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:09,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1353844607, now seen corresponding path program 1 times [2024-11-20 05:14:09,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:09,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571118789] [2024-11-20 05:14:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:09,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:09,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:09,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:09,900 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:09,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:09,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571118789] [2024-11-20 05:14:09,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571118789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:09,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:09,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 05:14:09,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223800743] [2024-11-20 05:14:09,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:09,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 05:14:09,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:09,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 05:14:09,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:14:09,933 INFO L87 Difference]: Start difference. First operand has 97 states, 75 states have (on average 1.5066666666666666) internal successors, (113), 76 states have internal predecessors, (113), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:09,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:09,962 INFO L93 Difference]: Finished difference Result 187 states and 315 transitions. [2024-11-20 05:14:09,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 05:14:09,964 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2024-11-20 05:14:09,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:09,972 INFO L225 Difference]: With dead ends: 187 [2024-11-20 05:14:09,973 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 05:14:09,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:14:09,979 INFO L432 NwaCegarLoop]: 143 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, 143 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 [2024-11-20 05:14:09,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:14:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 05:14:10,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-20 05:14:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 72 states have internal predecessors, (105), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-20 05:14:10,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 143 transitions. [2024-11-20 05:14:10,021 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 143 transitions. Word has length 137 [2024-11-20 05:14:10,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:10,021 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 143 transitions. [2024-11-20 05:14:10,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 143 transitions. [2024-11-20 05:14:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 05:14:10,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:10,026 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:10,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 05:14:10,026 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:10,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:10,027 INFO L85 PathProgramCache]: Analyzing trace with hash -754589945, now seen corresponding path program 1 times [2024-11-20 05:14:10,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:10,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867530999] [2024-11-20 05:14:10,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:10,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:10,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:10,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:10,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:10,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:10,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867530999] [2024-11-20 05:14:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867530999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 05:14:10,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662143578] [2024-11-20 05:14:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:10,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 05:14:10,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 05:14:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:10,367 INFO L87 Difference]: Start difference. First operand 93 states and 143 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:10,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:10,449 INFO L93 Difference]: Finished difference Result 260 states and 400 transitions. [2024-11-20 05:14:10,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 05:14:10,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 137 [2024-11-20 05:14:10,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:10,452 INFO L225 Difference]: With dead ends: 260 [2024-11-20 05:14:10,453 INFO L226 Difference]: Without dead ends: 170 [2024-11-20 05:14:10,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:10,455 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 114 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:10,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 308 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 05:14:10,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-20 05:14:10,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2024-11-20 05:14:10,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 132 states have (on average 1.4393939393939394) internal successors, (190), 133 states have internal predecessors, (190), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 05:14:10,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 254 transitions. [2024-11-20 05:14:10,487 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 254 transitions. Word has length 137 [2024-11-20 05:14:10,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:10,488 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 254 transitions. [2024-11-20 05:14:10,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:10,488 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 254 transitions. [2024-11-20 05:14:10,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 05:14:10,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:10,492 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:10,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 05:14:10,492 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:10,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:10,493 INFO L85 PathProgramCache]: Analyzing trace with hash 1168638089, now seen corresponding path program 1 times [2024-11-20 05:14:10,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:10,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543189286] [2024-11-20 05:14:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:10,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:10,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:10,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:10,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:10,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:10,762 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:10,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:10,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543189286] [2024-11-20 05:14:10,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543189286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:10,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:10,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 05:14:10,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535101224] [2024-11-20 05:14:10,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:10,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 05:14:10,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:10,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 05:14:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:10,768 INFO L87 Difference]: Start difference. First operand 167 states and 254 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:10,801 INFO L93 Difference]: Finished difference Result 333 states and 509 transitions. [2024-11-20 05:14:10,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 05:14:10,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 137 [2024-11-20 05:14:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:10,806 INFO L225 Difference]: With dead ends: 333 [2024-11-20 05:14:10,806 INFO L226 Difference]: Without dead ends: 169 [2024-11-20 05:14:10,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:10,808 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:10,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 279 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:14:10,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-20 05:14:10,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-20 05:14:10,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 134 states have (on average 1.4328358208955223) internal successors, (192), 135 states have internal predecessors, (192), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-20 05:14:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 256 transitions. [2024-11-20 05:14:10,824 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 256 transitions. Word has length 137 [2024-11-20 05:14:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:10,825 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 256 transitions. [2024-11-20 05:14:10,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 256 transitions. [2024-11-20 05:14:10,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 05:14:10,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:10,828 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:10,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 05:14:10,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:10,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:10,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1930907027, now seen corresponding path program 1 times [2024-11-20 05:14:10,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:10,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317156584] [2024-11-20 05:14:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:10,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:12,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:12,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:12,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:12,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:12,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317156584] [2024-11-20 05:14:12,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317156584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:12,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:12,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 05:14:12,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715722863] [2024-11-20 05:14:12,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:12,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 05:14:12,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:12,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 05:14:12,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 05:14:12,478 INFO L87 Difference]: Start difference. First operand 169 states and 256 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:13,453 INFO L93 Difference]: Finished difference Result 636 states and 935 transitions. [2024-11-20 05:14:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 05:14:13,453 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 138 [2024-11-20 05:14:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:13,460 INFO L225 Difference]: With dead ends: 636 [2024-11-20 05:14:13,462 INFO L226 Difference]: Without dead ends: 470 [2024-11-20 05:14:13,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-20 05:14:13,468 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 832 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:13,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 536 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 05:14:13,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-20 05:14:13,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 362. [2024-11-20 05:14:13,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 299 states have (on average 1.4247491638795986) internal successors, (426), 302 states have internal predecessors, (426), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 05:14:13,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 534 transitions. [2024-11-20 05:14:13,526 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 534 transitions. Word has length 138 [2024-11-20 05:14:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:13,527 INFO L471 AbstractCegarLoop]: Abstraction has 362 states and 534 transitions. [2024-11-20 05:14:13,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 534 transitions. [2024-11-20 05:14:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 05:14:13,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:13,534 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:13,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 05:14:13,535 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:13,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:13,535 INFO L85 PathProgramCache]: Analyzing trace with hash 241963285, now seen corresponding path program 1 times [2024-11-20 05:14:13,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:13,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903679516] [2024-11-20 05:14:13,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:13,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:15,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:15,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:15,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:15,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:15,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903679516] [2024-11-20 05:14:15,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903679516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:15,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:15,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 05:14:15,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125260287] [2024-11-20 05:14:15,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:15,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 05:14:15,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:15,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 05:14:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-20 05:14:15,734 INFO L87 Difference]: Start difference. First operand 362 states and 534 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:18,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:18,245 INFO L93 Difference]: Finished difference Result 899 states and 1317 transitions. [2024-11-20 05:14:18,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 05:14:18,246 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 138 [2024-11-20 05:14:18,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:18,249 INFO L225 Difference]: With dead ends: 899 [2024-11-20 05:14:18,249 INFO L226 Difference]: Without dead ends: 540 [2024-11-20 05:14:18,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-20 05:14:18,252 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 421 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:18,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 465 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 05:14:18,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2024-11-20 05:14:18,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 370. [2024-11-20 05:14:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 307 states have (on average 1.4201954397394136) internal successors, (436), 310 states have internal predecessors, (436), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 05:14:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 544 transitions. [2024-11-20 05:14:18,282 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 544 transitions. Word has length 138 [2024-11-20 05:14:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:18,283 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 544 transitions. [2024-11-20 05:14:18,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 544 transitions. [2024-11-20 05:14:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 05:14:18,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:18,286 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:18,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 05:14:18,287 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:18,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:18,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1941358443, now seen corresponding path program 1 times [2024-11-20 05:14:18,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:18,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481960085] [2024-11-20 05:14:18,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:18,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:19,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:19,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:19,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:19,427 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:19,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:19,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481960085] [2024-11-20 05:14:19,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481960085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:19,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:19,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 05:14:19,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716881359] [2024-11-20 05:14:19,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:19,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 05:14:19,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:19,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 05:14:19,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:14:19,430 INFO L87 Difference]: Start difference. First operand 370 states and 544 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:20,849 INFO L93 Difference]: Finished difference Result 1010 states and 1471 transitions. [2024-11-20 05:14:20,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 05:14:20,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 138 [2024-11-20 05:14:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:20,855 INFO L225 Difference]: With dead ends: 1010 [2024-11-20 05:14:20,856 INFO L226 Difference]: Without dead ends: 643 [2024-11-20 05:14:20,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-20 05:14:20,859 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 284 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:20,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 555 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 05:14:20,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-20 05:14:20,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 416. [2024-11-20 05:14:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 353 states have (on average 1.4362606232294617) internal successors, (507), 356 states have internal predecessors, (507), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 05:14:20,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 615 transitions. [2024-11-20 05:14:20,900 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 615 transitions. Word has length 138 [2024-11-20 05:14:20,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:20,901 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 615 transitions. [2024-11-20 05:14:20,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 9 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:20,901 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 615 transitions. [2024-11-20 05:14:20,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-20 05:14:20,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:20,904 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:20,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 05:14:20,904 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:20,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash 664665111, now seen corresponding path program 1 times [2024-11-20 05:14:20,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:20,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885633574] [2024-11-20 05:14:20,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:20,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:22,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:22,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:22,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:22,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:22,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:22,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:22,043 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:22,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:22,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885633574] [2024-11-20 05:14:22,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885633574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:22,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:22,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 05:14:22,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561163859] [2024-11-20 05:14:22,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:22,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 05:14:22,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:22,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 05:14:22,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 05:14:22,047 INFO L87 Difference]: Start difference. First operand 416 states and 615 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:23,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:23,198 INFO L93 Difference]: Finished difference Result 980 states and 1443 transitions. [2024-11-20 05:14:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 05:14:23,199 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 138 [2024-11-20 05:14:23,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:23,204 INFO L225 Difference]: With dead ends: 980 [2024-11-20 05:14:23,204 INFO L226 Difference]: Without dead ends: 567 [2024-11-20 05:14:23,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:14:23,207 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 134 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:23,209 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 499 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-20 05:14:23,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-20 05:14:23,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 366. [2024-11-20 05:14:23,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 303 states have (on average 1.4191419141914192) internal successors, (430), 306 states have internal predecessors, (430), 54 states have call successors, (54), 8 states have call predecessors, (54), 8 states have return successors, (54), 51 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 05:14:23,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 538 transitions. [2024-11-20 05:14:23,243 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 538 transitions. Word has length 138 [2024-11-20 05:14:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:23,246 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 538 transitions. [2024-11-20 05:14:23,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 8 states have internal predecessors, (46), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:23,247 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 538 transitions. [2024-11-20 05:14:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-20 05:14:23,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:23,249 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:23,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 05:14:23,250 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:23,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:23,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1354782361, now seen corresponding path program 1 times [2024-11-20 05:14:23,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:23,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487188691] [2024-11-20 05:14:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:23,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:23,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:23,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:23,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:23,605 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:23,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:23,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487188691] [2024-11-20 05:14:23,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487188691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:23,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:23,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 05:14:23,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533585170] [2024-11-20 05:14:23,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:23,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 05:14:23,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:23,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 05:14:23,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-20 05:14:23,608 INFO L87 Difference]: Start difference. First operand 366 states and 538 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:23,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:23,937 INFO L93 Difference]: Finished difference Result 850 states and 1262 transitions. [2024-11-20 05:14:23,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 05:14:23,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 139 [2024-11-20 05:14:23,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:23,941 INFO L225 Difference]: With dead ends: 850 [2024-11-20 05:14:23,941 INFO L226 Difference]: Without dead ends: 487 [2024-11-20 05:14:23,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-20 05:14:23,944 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 101 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:23,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 389 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 05:14:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-20 05:14:23,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 442. [2024-11-20 05:14:23,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 356 states have (on average 1.4129213483146068) internal successors, (503), 359 states have internal predecessors, (503), 73 states have call successors, (73), 12 states have call predecessors, (73), 12 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-20 05:14:23,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 649 transitions. [2024-11-20 05:14:23,978 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 649 transitions. Word has length 139 [2024-11-20 05:14:23,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:23,979 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 649 transitions. [2024-11-20 05:14:23,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:23,979 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 649 transitions. [2024-11-20 05:14:23,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:23,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:23,981 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:23,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 05:14:23,981 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:23,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 324428608, now seen corresponding path program 1 times [2024-11-20 05:14:23,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:23,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59771475] [2024-11-20 05:14:23,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:23,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:25,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:25,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:25,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:25,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59771475] [2024-11-20 05:14:25,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59771475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:25,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:25,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 05:14:25,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844143472] [2024-11-20 05:14:25,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:25,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 05:14:25,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:25,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 05:14:25,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-20 05:14:25,323 INFO L87 Difference]: Start difference. First operand 442 states and 649 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:26,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:26,543 INFO L93 Difference]: Finished difference Result 1461 states and 2123 transitions. [2024-11-20 05:14:26,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 05:14:26,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 140 [2024-11-20 05:14:26,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:26,551 INFO L225 Difference]: With dead ends: 1461 [2024-11-20 05:14:26,551 INFO L226 Difference]: Without dead ends: 1098 [2024-11-20 05:14:26,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2024-11-20 05:14:26,554 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 430 mSDsluCounter, 833 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 1155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:26,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [430 Valid, 969 Invalid, 1155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1053 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 05:14:26,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-20 05:14:26,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 446. [2024-11-20 05:14:26,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 360 states have (on average 1.413888888888889) internal successors, (509), 363 states have internal predecessors, (509), 73 states have call successors, (73), 12 states have call predecessors, (73), 12 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-20 05:14:26,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 655 transitions. [2024-11-20 05:14:26,594 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 655 transitions. Word has length 140 [2024-11-20 05:14:26,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:26,595 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 655 transitions. [2024-11-20 05:14:26,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 655 transitions. [2024-11-20 05:14:26,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:26,597 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:26,597 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:26,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 05:14:26,597 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:26,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:26,598 INFO L85 PathProgramCache]: Analyzing trace with hash 747130434, now seen corresponding path program 1 times [2024-11-20 05:14:26,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:26,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787703750] [2024-11-20 05:14:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:26,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:28,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:28,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:28,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:28,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:28,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:28,714 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:28,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:28,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787703750] [2024-11-20 05:14:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787703750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:28,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:28,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 05:14:28,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850859026] [2024-11-20 05:14:28,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:28,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 05:14:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:28,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 05:14:28,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-20 05:14:28,718 INFO L87 Difference]: Start difference. First operand 446 states and 655 transitions. Second operand has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:31,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:31,697 INFO L93 Difference]: Finished difference Result 1201 states and 1757 transitions. [2024-11-20 05:14:31,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 05:14:31,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 140 [2024-11-20 05:14:31,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:31,703 INFO L225 Difference]: With dead ends: 1201 [2024-11-20 05:14:31,703 INFO L226 Difference]: Without dead ends: 834 [2024-11-20 05:14:31,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-20 05:14:31,705 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 585 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:31,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 926 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-20 05:14:31,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-20 05:14:31,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 464. [2024-11-20 05:14:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 378 states have (on average 1.4232804232804233) internal successors, (538), 381 states have internal predecessors, (538), 73 states have call successors, (73), 12 states have call predecessors, (73), 12 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-20 05:14:31,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 684 transitions. [2024-11-20 05:14:31,741 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 684 transitions. Word has length 140 [2024-11-20 05:14:31,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:31,742 INFO L471 AbstractCegarLoop]: Abstraction has 464 states and 684 transitions. [2024-11-20 05:14:31,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-20 05:14:31,742 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 684 transitions. [2024-11-20 05:14:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:31,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:31,744 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:31,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 05:14:31,744 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:31,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:31,745 INFO L85 PathProgramCache]: Analyzing trace with hash -273937920, now seen corresponding path program 1 times [2024-11-20 05:14:31,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:31,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313304911] [2024-11-20 05:14:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:31,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:32,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:32,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:32,924 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:32,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:32,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313304911] [2024-11-20 05:14:32,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313304911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:32,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:32,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 05:14:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638497216] [2024-11-20 05:14:32,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:32,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 05:14:32,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:32,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 05:14:32,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 05:14:32,927 INFO L87 Difference]: Start difference. First operand 464 states and 684 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:35,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:35,384 INFO L93 Difference]: Finished difference Result 1619 states and 2363 transitions. [2024-11-20 05:14:35,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 05:14:35,384 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2024-11-20 05:14:35,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:35,393 INFO L225 Difference]: With dead ends: 1619 [2024-11-20 05:14:35,394 INFO L226 Difference]: Without dead ends: 1252 [2024-11-20 05:14:35,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-20 05:14:35,397 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 539 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:35,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 732 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 05:14:35,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-20 05:14:35,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 820. [2024-11-20 05:14:35,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 672 states have (on average 1.4241071428571428) internal successors, (957), 678 states have internal predecessors, (957), 127 states have call successors, (127), 20 states have call predecessors, (127), 20 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:35,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1211 transitions. [2024-11-20 05:14:35,455 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1211 transitions. Word has length 140 [2024-11-20 05:14:35,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1211 transitions. [2024-11-20 05:14:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 10 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1211 transitions. [2024-11-20 05:14:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:35,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:35,458 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:35,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 05:14:35,459 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:35,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:35,459 INFO L85 PathProgramCache]: Analyzing trace with hash -372670002, now seen corresponding path program 1 times [2024-11-20 05:14:35,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:35,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876217041] [2024-11-20 05:14:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:35,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:35,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:35,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:35,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:35,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:35,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,673 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-20 05:14:35,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876217041] [2024-11-20 05:14:35,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876217041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 05:14:35,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616854178] [2024-11-20 05:14:35,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:35,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 05:14:35,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:14:35,680 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) [2024-11-20 05:14:35,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 05:14:35,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:35,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 05:14:35,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 05:14:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 242 proven. 54 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-20 05:14:36,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 05:14:36,426 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-20 05:14:36,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616854178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 05:14:36,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 05:14:36,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-11-20 05:14:36,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100700354] [2024-11-20 05:14:36,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 05:14:36,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 05:14:36,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:36,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 05:14:36,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-20 05:14:36,429 INFO L87 Difference]: Start difference. First operand 820 states and 1211 transitions. Second operand has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 5 states have call predecessors, (56), 6 states have call successors, (56) [2024-11-20 05:14:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:36,748 INFO L93 Difference]: Finished difference Result 1609 states and 2347 transitions. [2024-11-20 05:14:36,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 05:14:36,749 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 5 states have call predecessors, (56), 6 states have call successors, (56) Word has length 140 [2024-11-20 05:14:36,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:36,754 INFO L225 Difference]: With dead ends: 1609 [2024-11-20 05:14:36,755 INFO L226 Difference]: Without dead ends: 868 [2024-11-20 05:14:36,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=154, Unknown=0, NotChecked=0, Total=240 [2024-11-20 05:14:36,757 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 386 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:36,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 225 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 05:14:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-20 05:14:36,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 856. [2024-11-20 05:14:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 699 states have (on average 1.390557939914163) internal successors, (972), 705 states have internal predecessors, (972), 127 states have call successors, (127), 29 states have call predecessors, (127), 29 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1226 transitions. [2024-11-20 05:14:36,828 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1226 transitions. Word has length 140 [2024-11-20 05:14:36,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:36,829 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1226 transitions. [2024-11-20 05:14:36,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 6 states have call successors, (55), 3 states have call predecessors, (55), 5 states have return successors, (56), 5 states have call predecessors, (56), 6 states have call successors, (56) [2024-11-20 05:14:36,829 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1226 transitions. [2024-11-20 05:14:36,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:36,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:36,831 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:36,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 05:14:37,032 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,SelfDestructingSolverStorable11 [2024-11-20 05:14:37,032 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:37,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:37,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1928152588, now seen corresponding path program 1 times [2024-11-20 05:14:37,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:37,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020641441] [2024-11-20 05:14:37,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:37,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 05:14:37,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120682231] [2024-11-20 05:14:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:37,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 05:14:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:14:37,121 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 05:14:37,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 05:14:37,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:37,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 05:14:37,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 05:14:37,490 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 250 proven. 42 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-20 05:14:37,490 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 05:14:37,785 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-11-20 05:14:37,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:37,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020641441] [2024-11-20 05:14:37,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 05:14:37,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120682231] [2024-11-20 05:14:37,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120682231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 05:14:37,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 05:14:37,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-20 05:14:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137689543] [2024-11-20 05:14:37,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 05:14:37,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 05:14:37,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:37,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 05:14:37,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-11-20 05:14:37,791 INFO L87 Difference]: Start difference. First operand 856 states and 1226 transitions. Second operand has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-20 05:14:38,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:38,835 INFO L93 Difference]: Finished difference Result 2439 states and 3372 transitions. [2024-11-20 05:14:38,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 05:14:38,836 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 140 [2024-11-20 05:14:38,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:38,844 INFO L225 Difference]: With dead ends: 2439 [2024-11-20 05:14:38,844 INFO L226 Difference]: Without dead ends: 1666 [2024-11-20 05:14:38,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2024-11-20 05:14:38,849 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 246 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:38,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 938 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 05:14:38,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2024-11-20 05:14:38,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1268. [2024-11-20 05:14:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1102 states have (on average 1.3765880217785844) internal successors, (1517), 1108 states have internal predecessors, (1517), 127 states have call successors, (127), 38 states have call predecessors, (127), 38 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:38,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1771 transitions. [2024-11-20 05:14:38,945 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1771 transitions. Word has length 140 [2024-11-20 05:14:38,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:38,945 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1771 transitions. [2024-11-20 05:14:38,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.3125) internal successors, (85), 16 states have internal predecessors, (85), 3 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-20 05:14:38,946 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1771 transitions. [2024-11-20 05:14:38,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:38,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:38,949 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:38,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 05:14:39,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-20 05:14:39,150 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:39,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:39,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1497174563, now seen corresponding path program 1 times [2024-11-20 05:14:39,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:39,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054525241] [2024-11-20 05:14:39,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:39,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:39,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:39,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:39,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054525241] [2024-11-20 05:14:39,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054525241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:39,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:39,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 05:14:39,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201824493] [2024-11-20 05:14:39,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:39,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 05:14:39,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:39,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 05:14:39,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:39,259 INFO L87 Difference]: Start difference. First operand 1268 states and 1771 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:39,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:39,400 INFO L93 Difference]: Finished difference Result 2930 states and 4081 transitions. [2024-11-20 05:14:39,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 05:14:39,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2024-11-20 05:14:39,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:39,409 INFO L225 Difference]: With dead ends: 2930 [2024-11-20 05:14:39,409 INFO L226 Difference]: Without dead ends: 1749 [2024-11-20 05:14:39,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:39,413 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 123 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:39,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 266 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:14:39,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1749 states. [2024-11-20 05:14:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1749 to 1268. [2024-11-20 05:14:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 1102 states have (on average 1.3693284936479129) internal successors, (1509), 1108 states have internal predecessors, (1509), 127 states have call successors, (127), 38 states have call predecessors, (127), 38 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:39,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1763 transitions. [2024-11-20 05:14:39,506 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1763 transitions. Word has length 140 [2024-11-20 05:14:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:39,506 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1763 transitions. [2024-11-20 05:14:39,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1763 transitions. [2024-11-20 05:14:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:39,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:39,509 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:39,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 05:14:39,510 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:39,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1798939843, now seen corresponding path program 1 times [2024-11-20 05:14:39,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:39,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454030225] [2024-11-20 05:14:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:39,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:40,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:40,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:40,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:40,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:40,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:40,075 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:40,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:40,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454030225] [2024-11-20 05:14:40,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454030225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:40,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:40,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 05:14:40,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493893361] [2024-11-20 05:14:40,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:40,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 05:14:40,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:40,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 05:14:40,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 05:14:40,078 INFO L87 Difference]: Start difference. First operand 1268 states and 1763 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:40,917 INFO L93 Difference]: Finished difference Result 4157 states and 5616 transitions. [2024-11-20 05:14:40,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 05:14:40,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2024-11-20 05:14:40,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:40,931 INFO L225 Difference]: With dead ends: 4157 [2024-11-20 05:14:40,931 INFO L226 Difference]: Without dead ends: 2976 [2024-11-20 05:14:40,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-20 05:14:40,934 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 172 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:40,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 855 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 05:14:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2024-11-20 05:14:41,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 1408. [2024-11-20 05:14:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 1242 states have (on average 1.3792270531400965) internal successors, (1713), 1248 states have internal predecessors, (1713), 127 states have call successors, (127), 38 states have call predecessors, (127), 38 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1967 transitions. [2024-11-20 05:14:41,049 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1967 transitions. Word has length 140 [2024-11-20 05:14:41,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:41,051 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1967 transitions. [2024-11-20 05:14:41,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:41,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1967 transitions. [2024-11-20 05:14:41,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-20 05:14:41,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:41,054 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:41,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 05:14:41,054 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:41,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:41,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2073325627, now seen corresponding path program 1 times [2024-11-20 05:14:41,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:41,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445854305] [2024-11-20 05:14:41,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:41,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:41,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:41,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:41,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:41,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:41,451 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:41,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:41,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445854305] [2024-11-20 05:14:41,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445854305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:41,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:41,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 05:14:41,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915425348] [2024-11-20 05:14:41,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:41,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 05:14:41,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:41,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 05:14:41,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-20 05:14:41,454 INFO L87 Difference]: Start difference. First operand 1408 states and 1967 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:42,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:42,083 INFO L93 Difference]: Finished difference Result 3804 states and 5250 transitions. [2024-11-20 05:14:42,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 05:14:42,084 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 140 [2024-11-20 05:14:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:42,094 INFO L225 Difference]: With dead ends: 3804 [2024-11-20 05:14:42,095 INFO L226 Difference]: Without dead ends: 2483 [2024-11-20 05:14:42,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-20 05:14:42,099 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 153 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:42,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 990 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 05:14:42,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2483 states. [2024-11-20 05:14:42,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2483 to 1436. [2024-11-20 05:14:42,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 1270 states have (on average 1.3803149606299212) internal successors, (1753), 1276 states have internal predecessors, (1753), 127 states have call successors, (127), 38 states have call predecessors, (127), 38 states have return successors, (127), 121 states have call predecessors, (127), 127 states have call successors, (127) [2024-11-20 05:14:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2007 transitions. [2024-11-20 05:14:42,224 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2007 transitions. Word has length 140 [2024-11-20 05:14:42,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:42,226 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 2007 transitions. [2024-11-20 05:14:42,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2007 transitions. [2024-11-20 05:14:42,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:14:42,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:42,229 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:42,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 05:14:42,230 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:42,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -353590963, now seen corresponding path program 1 times [2024-11-20 05:14:42,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:42,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493146776] [2024-11-20 05:14:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:45,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:45,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:45,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:45,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:45,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493146776] [2024-11-20 05:14:45,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493146776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:45,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:45,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-20 05:14:45,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040425518] [2024-11-20 05:14:45,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:45,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 05:14:45,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:45,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 05:14:45,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2024-11-20 05:14:45,327 INFO L87 Difference]: Start difference. First operand 1436 states and 2007 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:48,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:48,639 INFO L93 Difference]: Finished difference Result 3061 states and 4247 transitions. [2024-11-20 05:14:48,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 05:14:48,640 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2024-11-20 05:14:48,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:48,648 INFO L225 Difference]: With dead ends: 3061 [2024-11-20 05:14:48,648 INFO L226 Difference]: Without dead ends: 1712 [2024-11-20 05:14:48,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=219, Invalid=593, Unknown=0, NotChecked=0, Total=812 [2024-11-20 05:14:48,651 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 355 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:48,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1423 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 05:14:48,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2024-11-20 05:14:48,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1042. [2024-11-20 05:14:48,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1042 states, 938 states have (on average 1.3869936034115138) internal successors, (1301), 940 states have internal predecessors, (1301), 79 states have call successors, (79), 24 states have call predecessors, (79), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-20 05:14:48,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1042 states to 1042 states and 1459 transitions. [2024-11-20 05:14:48,743 INFO L78 Accepts]: Start accepts. Automaton has 1042 states and 1459 transitions. Word has length 141 [2024-11-20 05:14:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:48,743 INFO L471 AbstractCegarLoop]: Abstraction has 1042 states and 1459 transitions. [2024-11-20 05:14:48,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1042 states and 1459 transitions. [2024-11-20 05:14:48,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:14:48,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:48,746 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:48,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 05:14:48,746 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:48,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:48,747 INFO L85 PathProgramCache]: Analyzing trace with hash -51825683, now seen corresponding path program 1 times [2024-11-20 05:14:48,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:48,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209126422] [2024-11-20 05:14:48,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:48,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:49,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:49,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:49,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:49,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:49,471 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:49,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:49,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209126422] [2024-11-20 05:14:49,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209126422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:49,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:49,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 05:14:49,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358984059] [2024-11-20 05:14:49,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:49,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 05:14:49,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:49,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 05:14:49,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-20 05:14:49,473 INFO L87 Difference]: Start difference. First operand 1042 states and 1459 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:50,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:50,304 INFO L93 Difference]: Finished difference Result 2409 states and 3313 transitions. [2024-11-20 05:14:50,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 05:14:50,305 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2024-11-20 05:14:50,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:50,311 INFO L225 Difference]: With dead ends: 2409 [2024-11-20 05:14:50,311 INFO L226 Difference]: Without dead ends: 1438 [2024-11-20 05:14:50,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-20 05:14:50,314 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 262 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:50,314 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1069 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 05:14:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-20 05:14:50,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1054. [2024-11-20 05:14:50,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 950 states have (on average 1.3821052631578947) internal successors, (1313), 952 states have internal predecessors, (1313), 79 states have call successors, (79), 24 states have call predecessors, (79), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-20 05:14:50,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1471 transitions. [2024-11-20 05:14:50,404 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1471 transitions. Word has length 141 [2024-11-20 05:14:50,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:50,404 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1471 transitions. [2024-11-20 05:14:50,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 9 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1471 transitions. [2024-11-20 05:14:50,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:14:50,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:50,407 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:50,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 05:14:50,408 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:50,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:50,408 INFO L85 PathProgramCache]: Analyzing trace with hash -527242570, now seen corresponding path program 1 times [2024-11-20 05:14:50,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:50,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061255799] [2024-11-20 05:14:50,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:50,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:50,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:50,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:50,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:50,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:50,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061255799] [2024-11-20 05:14:50,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061255799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:50,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:50,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 05:14:50,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483228662] [2024-11-20 05:14:50,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:50,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 05:14:50,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:50,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 05:14:50,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-20 05:14:50,909 INFO L87 Difference]: Start difference. First operand 1054 states and 1471 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:51,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:51,477 INFO L93 Difference]: Finished difference Result 2814 states and 3943 transitions. [2024-11-20 05:14:51,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 05:14:51,479 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2024-11-20 05:14:51,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:51,487 INFO L225 Difference]: With dead ends: 2814 [2024-11-20 05:14:51,488 INFO L226 Difference]: Without dead ends: 1831 [2024-11-20 05:14:51,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-11-20 05:14:51,491 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 220 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:51,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 861 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 05:14:51,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-20 05:14:51,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1321. [2024-11-20 05:14:51,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1321 states, 1217 states have (on average 1.4042728019720625) internal successors, (1709), 1219 states have internal predecessors, (1709), 79 states have call successors, (79), 24 states have call predecessors, (79), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-20 05:14:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1321 states to 1321 states and 1867 transitions. [2024-11-20 05:14:51,589 INFO L78 Accepts]: Start accepts. Automaton has 1321 states and 1867 transitions. Word has length 141 [2024-11-20 05:14:51,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:51,589 INFO L471 AbstractCegarLoop]: Abstraction has 1321 states and 1867 transitions. [2024-11-20 05:14:51,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:51,590 INFO L276 IsEmpty]: Start isEmpty. Operand 1321 states and 1867 transitions. [2024-11-20 05:14:51,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:14:51,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:51,592 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:51,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 05:14:51,593 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:51,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:51,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1501145099, now seen corresponding path program 1 times [2024-11-20 05:14:51,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:51,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116247632] [2024-11-20 05:14:51,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:51,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:14:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:14:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:14:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:14:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-20 05:14:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:14:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-20 05:14:51,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:14:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 05:14:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:14:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:14:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 05:14:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:14:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-20 05:14:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:14:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-20 05:14:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:14:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-20 05:14:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:14:51,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:51,683 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-20 05:14:51,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:14:51,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116247632] [2024-11-20 05:14:51,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116247632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:14:51,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:14:51,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 05:14:51,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78003669] [2024-11-20 05:14:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:14:51,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 05:14:51,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:14:51,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 05:14:51,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:51,685 INFO L87 Difference]: Start difference. First operand 1321 states and 1867 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:51,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:14:51,816 INFO L93 Difference]: Finished difference Result 2765 states and 3914 transitions. [2024-11-20 05:14:51,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 05:14:51,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 141 [2024-11-20 05:14:51,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:14:51,823 INFO L225 Difference]: With dead ends: 2765 [2024-11-20 05:14:51,823 INFO L226 Difference]: Without dead ends: 1515 [2024-11-20 05:14:51,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:14:51,826 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 27 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 05:14:51,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 247 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 05:14:51,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2024-11-20 05:14:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1315. [2024-11-20 05:14:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1315 states, 1211 states have (on average 1.4013212221304707) internal successors, (1697), 1213 states have internal predecessors, (1697), 79 states have call successors, (79), 24 states have call predecessors, (79), 24 states have return successors, (79), 77 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-20 05:14:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1855 transitions. [2024-11-20 05:14:51,917 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1855 transitions. Word has length 141 [2024-11-20 05:14:51,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:14:51,917 INFO L471 AbstractCegarLoop]: Abstraction has 1315 states and 1855 transitions. [2024-11-20 05:14:51,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-20 05:14:51,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1855 transitions. [2024-11-20 05:14:51,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-20 05:14:51,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:14:51,920 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 05:14:51,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 05:14:51,920 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:14:51,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:14:51,920 INFO L85 PathProgramCache]: Analyzing trace with hash 881763910, now seen corresponding path program 1 times [2024-11-20 05:14:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:14:51,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057539002] [2024-11-20 05:14:51,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:51,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:14:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 05:14:51,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552249307] [2024-11-20 05:14:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:14:51,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 05:14:51,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:14:51,996 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 05:14:51,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 05:14:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:14:52,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 05:14:52,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 05:14:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 39 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-20 05:14:52,510 INFO L311 TraceCheckSpWp]: Computing backward predicates...