./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_loopvsstraightlinecode_100-while_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_loopvsstraightlinecode_100-while_file-31.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 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 09:15:08,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 09:15:08,532 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 09:15:08,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 09:15:08,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 09:15:08,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 09:15:08,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 09:15:08,563 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 09:15:08,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 09:15:08,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 09:15:08,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 09:15:08,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 09:15:08,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 09:15:08,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 09:15:08,570 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 09:15:08,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 09:15:08,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 09:15:08,571 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 09:15:08,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 09:15:08,572 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 09:15:08,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 09:15:08,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 09:15:08,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 09:15:08,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 09:15:08,574 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 09:15:08,574 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 09:15:08,575 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 09:15:08,575 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 09:15:08,575 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 09:15:08,576 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 09:15:08,576 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 09:15:08,576 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 09:15:08,577 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:15:08,577 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 09:15:08,577 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 09:15:08,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 09:15:08,578 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 09:15:08,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 09:15:08,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 09:15:08,579 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 09:15:08,579 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 09:15:08,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 09:15:08,580 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6172bcf472a886b23306a046bd0a20ff775f8e0d008adc455f4ef56119e5614f [2024-10-24 09:15:08,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 09:15:08,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 09:15:08,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 09:15:08,893 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 09:15:08,893 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 09:15:08,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2024-10-24 09:15:10,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 09:15:10,683 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 09:15:10,684 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-31.i [2024-10-24 09:15:10,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d882c891/220e1f356d81411d83648628db815e85/FLAG91434699b [2024-10-24 09:15:11,027 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d882c891/220e1f356d81411d83648628db815e85 [2024-10-24 09:15:11,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 09:15:11,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 09:15:11,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 09:15:11,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 09:15:11,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 09:15:11,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3353f0ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11, skipping insertion in model container [2024-10-24 09:15:11,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,079 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 09:15:11,263 WARN L248 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_loopvsstraightlinecode_100-while_file-31.i[916,929] [2024-10-24 09:15:11,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:15:11,358 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 09:15:11,369 WARN L248 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_loopvsstraightlinecode_100-while_file-31.i[916,929] [2024-10-24 09:15:11,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 09:15:11,431 INFO L204 MainTranslator]: Completed translation [2024-10-24 09:15:11,432 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11 WrapperNode [2024-10-24 09:15:11,432 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 09:15:11,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 09:15:11,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 09:15:11,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 09:15:11,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,454 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,503 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 259 [2024-10-24 09:15:11,504 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 09:15:11,505 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 09:15:11,505 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 09:15:11,505 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 09:15:11,521 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,571 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]. [2024-10-24 09:15:11,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,619 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,627 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 09:15:11,628 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 09:15:11,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 09:15:11,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 09:15:11,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (1/1) ... [2024-10-24 09:15:11,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 09:15:11,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 09:15:11,664 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) [2024-10-24 09:15:11,671 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 [2024-10-24 09:15:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 09:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 09:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 09:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 09:15:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 09:15:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 09:15:11,824 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 09:15:11,826 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 09:15:12,381 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-24 09:15:12,381 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 09:15:12,486 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 09:15:12,487 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 09:15:12,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:15:12 BoogieIcfgContainer [2024-10-24 09:15:12,488 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 09:15:12,490 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 09:15:12,491 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 09:15:12,494 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 09:15:12,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:15:11" (1/3) ... [2024-10-24 09:15:12,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feafc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:15:12, skipping insertion in model container [2024-10-24 09:15:12,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:15:11" (2/3) ... [2024-10-24 09:15:12,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feafc1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:15:12, skipping insertion in model container [2024-10-24 09:15:12,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:15:12" (3/3) ... [2024-10-24 09:15:12,499 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-31.i [2024-10-24 09:15:12,516 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 09:15:12,517 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 09:15:12,595 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 09:15:12,605 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;@173888d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 09:15:12,606 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 09:15:12,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 71 states have (on average 1.5070422535211268) internal successors, (107), 72 states have internal predecessors, (107), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:15:12,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 09:15:12,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:12,629 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:12,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:12,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash -129482284, now seen corresponding path program 1 times [2024-10-24 09:15:12,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:12,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080682237] [2024-10-24 09:15:12,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:12,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:12,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:12,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:13,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:13,207 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:13,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:13,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080682237] [2024-10-24 09:15:13,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080682237] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:13,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:13,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 09:15:13,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310990383] [2024-10-24 09:15:13,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:13,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 09:15:13,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:13,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 09:15:13,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:15:13,244 INFO L87 Difference]: Start difference. First operand has 100 states, 71 states have (on average 1.5070422535211268) internal successors, (107), 72 states have internal predecessors, (107), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:15:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:13,299 INFO L93 Difference]: Finished difference Result 187 states and 327 transitions. [2024-10-24 09:15:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 09:15:13,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 168 [2024-10-24 09:15:13,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:13,315 INFO L225 Difference]: With dead ends: 187 [2024-10-24 09:15:13,315 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 09:15:13,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 09:15:13,323 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:13,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 09:15:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 09:15:13,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-24 09:15:13,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 60 states have internal predecessors, (86), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-24 09:15:13,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 138 transitions. [2024-10-24 09:15:13,385 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 138 transitions. Word has length 168 [2024-10-24 09:15:13,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:13,386 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 138 transitions. [2024-10-24 09:15:13,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-10-24 09:15:13,387 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 138 transitions. [2024-10-24 09:15:13,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 09:15:13,391 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:13,391 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:13,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 09:15:13,392 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:13,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:13,392 INFO L85 PathProgramCache]: Analyzing trace with hash 2141114508, now seen corresponding path program 1 times [2024-10-24 09:15:13,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:13,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480470970] [2024-10-24 09:15:13,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:13,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:14,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:14,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:14,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:14,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:14,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:14,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:14,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:14,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:14,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480470970] [2024-10-24 09:15:14,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480470970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:14,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:14,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:15:14,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488759666] [2024-10-24 09:15:14,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:14,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:15:14,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:14,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:15:14,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:15:14,318 INFO L87 Difference]: Start difference. First operand 88 states and 138 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:14,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:14,551 INFO L93 Difference]: Finished difference Result 262 states and 411 transitions. [2024-10-24 09:15:14,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:15:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 168 [2024-10-24 09:15:14,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:14,556 INFO L225 Difference]: With dead ends: 262 [2024-10-24 09:15:14,557 INFO L226 Difference]: Without dead ends: 175 [2024-10-24 09:15:14,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:15:14,559 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 88 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:14,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 385 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:15:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-10-24 09:15:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 139. [2024-10-24 09:15:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 84 states have internal predecessors, (112), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 09:15:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 216 transitions. [2024-10-24 09:15:14,591 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 216 transitions. Word has length 168 [2024-10-24 09:15:14,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:14,593 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 216 transitions. [2024-10-24 09:15:14,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 216 transitions. [2024-10-24 09:15:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-24 09:15:14,596 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:14,596 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:14,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 09:15:14,597 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:14,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1418303682, now seen corresponding path program 1 times [2024-10-24 09:15:14,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:14,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815746893] [2024-10-24 09:15:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:14,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:15,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:15,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:15,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:15,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:15,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:15,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:15,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815746893] [2024-10-24 09:15:15,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815746893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:15,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:15,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:15:15,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701320433] [2024-10-24 09:15:15,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:15,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:15:15,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:15,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:15:15,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:15:15,173 INFO L87 Difference]: Start difference. First operand 139 states and 216 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:15,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:15,474 INFO L93 Difference]: Finished difference Result 377 states and 587 transitions. [2024-10-24 09:15:15,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 09:15:15,476 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-10-24 09:15:15,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:15,484 INFO L225 Difference]: With dead ends: 377 [2024-10-24 09:15:15,484 INFO L226 Difference]: Without dead ends: 290 [2024-10-24 09:15:15,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:15:15,487 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 203 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:15,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 637 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:15:15,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-10-24 09:15:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 204. [2024-10-24 09:15:15,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 122 states have (on average 1.3114754098360655) internal successors, (160), 122 states have internal predecessors, (160), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-24 09:15:15,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 316 transitions. [2024-10-24 09:15:15,541 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 316 transitions. Word has length 169 [2024-10-24 09:15:15,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:15,544 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 316 transitions. [2024-10-24 09:15:15,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:15,545 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 316 transitions. [2024-10-24 09:15:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-24 09:15:15,551 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:15,551 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:15,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 09:15:15,552 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:15,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1187719872, now seen corresponding path program 1 times [2024-10-24 09:15:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800403937] [2024-10-24 09:15:15,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:15,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:15,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:15,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:15,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:15,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800403937] [2024-10-24 09:15:15,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800403937] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:15,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:15,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:15:15,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145327814] [2024-10-24 09:15:15,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:15,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:15:15,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:15,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:15:15,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:15:15,962 INFO L87 Difference]: Start difference. First operand 204 states and 316 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:16,158 INFO L93 Difference]: Finished difference Result 406 states and 627 transitions. [2024-10-24 09:15:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:15:16,160 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 169 [2024-10-24 09:15:16,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:16,162 INFO L225 Difference]: With dead ends: 406 [2024-10-24 09:15:16,163 INFO L226 Difference]: Without dead ends: 254 [2024-10-24 09:15:16,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:15:16,165 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 78 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:16,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 371 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:15:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-10-24 09:15:16,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 210. [2024-10-24 09:15:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 128 states have (on average 1.3125) internal successors, (168), 128 states have internal predecessors, (168), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-24 09:15:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 324 transitions. [2024-10-24 09:15:16,199 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 324 transitions. Word has length 169 [2024-10-24 09:15:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:16,200 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 324 transitions. [2024-10-24 09:15:16,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 324 transitions. [2024-10-24 09:15:16,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-24 09:15:16,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:16,204 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:16,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 09:15:16,205 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:16,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash -481849664, now seen corresponding path program 1 times [2024-10-24 09:15:16,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:16,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261489497] [2024-10-24 09:15:16,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:16,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:16,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:16,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:16,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:16,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:16,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:16,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:16,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:16,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261489497] [2024-10-24 09:15:16,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261489497] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:16,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:16,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 09:15:16,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416445572] [2024-10-24 09:15:16,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:16,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 09:15:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 09:15:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 09:15:16,601 INFO L87 Difference]: Start difference. First operand 210 states and 324 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:16,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:16,804 INFO L93 Difference]: Finished difference Result 406 states and 626 transitions. [2024-10-24 09:15:16,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 09:15:16,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 170 [2024-10-24 09:15:16,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:16,808 INFO L225 Difference]: With dead ends: 406 [2024-10-24 09:15:16,808 INFO L226 Difference]: Without dead ends: 254 [2024-10-24 09:15:16,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:15:16,816 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 76 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:16,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 373 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 09:15:16,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-10-24 09:15:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 211. [2024-10-24 09:15:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 129 states have (on average 1.310077519379845) internal successors, (169), 129 states have internal predecessors, (169), 78 states have call successors, (78), 3 states have call predecessors, (78), 3 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-10-24 09:15:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 325 transitions. [2024-10-24 09:15:16,848 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 325 transitions. Word has length 170 [2024-10-24 09:15:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:16,849 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 325 transitions. [2024-10-24 09:15:16,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 325 transitions. [2024-10-24 09:15:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 09:15:16,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:16,851 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:16,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 09:15:16,852 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:16,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:16,852 INFO L85 PathProgramCache]: Analyzing trace with hash -471209597, now seen corresponding path program 1 times [2024-10-24 09:15:16,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:16,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889895738] [2024-10-24 09:15:16,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:16,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889895738] [2024-10-24 09:15:22,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889895738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:22,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:22,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 09:15:22,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665041810] [2024-10-24 09:15:22,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:22,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 09:15:22,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:22,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 09:15:22,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 09:15:22,415 INFO L87 Difference]: Start difference. First operand 211 states and 325 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:24,663 INFO L93 Difference]: Finished difference Result 480 states and 729 transitions. [2024-10-24 09:15:24,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:15:24,664 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2024-10-24 09:15:24,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:24,667 INFO L225 Difference]: With dead ends: 480 [2024-10-24 09:15:24,667 INFO L226 Difference]: Without dead ends: 328 [2024-10-24 09:15:24,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:15:24,671 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 136 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:24,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 691 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-24 09:15:24,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-10-24 09:15:24,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 302. [2024-10-24 09:15:24,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 199 states have (on average 1.3517587939698492) internal successors, (269), 201 states have internal predecessors, (269), 96 states have call successors, (96), 6 states have call predecessors, (96), 6 states have return successors, (96), 94 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-24 09:15:24,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 461 transitions. [2024-10-24 09:15:24,712 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 461 transitions. Word has length 171 [2024-10-24 09:15:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:24,713 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 461 transitions. [2024-10-24 09:15:24,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:24,714 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 461 transitions. [2024-10-24 09:15:24,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 09:15:24,715 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:24,715 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:24,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 09:15:24,716 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:24,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:24,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1280556223, now seen corresponding path program 1 times [2024-10-24 09:15:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:24,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875662291] [2024-10-24 09:15:24,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:24,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:25,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:25,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:25,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:25,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:25,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:25,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:25,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:25,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:25,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:25,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875662291] [2024-10-24 09:15:25,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875662291] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:25,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:25,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 09:15:25,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541322106] [2024-10-24 09:15:25,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:25,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 09:15:25,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:25,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 09:15:25,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:15:25,317 INFO L87 Difference]: Start difference. First operand 302 states and 461 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:25,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:25,829 INFO L93 Difference]: Finished difference Result 712 states and 1085 transitions. [2024-10-24 09:15:25,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:15:25,830 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2024-10-24 09:15:25,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:25,837 INFO L225 Difference]: With dead ends: 712 [2024-10-24 09:15:25,837 INFO L226 Difference]: Without dead ends: 473 [2024-10-24 09:15:25,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:15:25,841 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 297 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:25,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 639 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:15:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2024-10-24 09:15:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 453. [2024-10-24 09:15:25,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 292 states have (on average 1.3184931506849316) internal successors, (385), 296 states have internal predecessors, (385), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 681 transitions. [2024-10-24 09:15:25,892 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 681 transitions. Word has length 171 [2024-10-24 09:15:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:25,893 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 681 transitions. [2024-10-24 09:15:25,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:25,894 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 681 transitions. [2024-10-24 09:15:25,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 09:15:25,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:25,896 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:25,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 09:15:25,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:25,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:25,897 INFO L85 PathProgramCache]: Analyzing trace with hash 45943427, now seen corresponding path program 1 times [2024-10-24 09:15:25,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:25,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181517481] [2024-10-24 09:15:25,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:25,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:26,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:26,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:26,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:26,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181517481] [2024-10-24 09:15:26,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181517481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:26,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:26,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 09:15:26,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026652934] [2024-10-24 09:15:26,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:26,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 09:15:26,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:26,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 09:15:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 09:15:26,421 INFO L87 Difference]: Start difference. First operand 453 states and 681 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:26,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:26,890 INFO L93 Difference]: Finished difference Result 1033 states and 1553 transitions. [2024-10-24 09:15:26,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 09:15:26,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2024-10-24 09:15:26,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:26,897 INFO L225 Difference]: With dead ends: 1033 [2024-10-24 09:15:26,897 INFO L226 Difference]: Without dead ends: 662 [2024-10-24 09:15:26,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 09:15:26,900 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 317 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:26,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 489 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:15:26,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-10-24 09:15:26,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 500. [2024-10-24 09:15:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 339 states have (on average 1.3333333333333333) internal successors, (452), 343 states have internal predecessors, (452), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:26,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 748 transitions. [2024-10-24 09:15:26,969 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 748 transitions. Word has length 171 [2024-10-24 09:15:26,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:26,970 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 748 transitions. [2024-10-24 09:15:26,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:26,971 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 748 transitions. [2024-10-24 09:15:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-24 09:15:26,973 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:26,974 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:26,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 09:15:26,974 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:26,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:26,975 INFO L85 PathProgramCache]: Analyzing trace with hash -763403199, now seen corresponding path program 1 times [2024-10-24 09:15:26,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:26,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853145561] [2024-10-24 09:15:26,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:26,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:29,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:29,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:29,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:29,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:29,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:29,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853145561] [2024-10-24 09:15:29,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853145561] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:29,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:29,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 09:15:29,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049691761] [2024-10-24 09:15:29,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:29,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 09:15:29,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:29,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 09:15:29,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-24 09:15:29,937 INFO L87 Difference]: Start difference. First operand 500 states and 748 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:31,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:31,207 INFO L93 Difference]: Finished difference Result 914 states and 1358 transitions. [2024-10-24 09:15:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 09:15:31,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 171 [2024-10-24 09:15:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:31,214 INFO L225 Difference]: With dead ends: 914 [2024-10-24 09:15:31,214 INFO L226 Difference]: Without dead ends: 580 [2024-10-24 09:15:31,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:15:31,218 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 169 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:31,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 786 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 09:15:31,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-10-24 09:15:31,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 500. [2024-10-24 09:15:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 339 states have (on average 1.3244837758112094) internal successors, (449), 343 states have internal predecessors, (449), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 745 transitions. [2024-10-24 09:15:31,276 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 745 transitions. Word has length 171 [2024-10-24 09:15:31,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:31,277 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 745 transitions. [2024-10-24 09:15:31,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:31,277 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 745 transitions. [2024-10-24 09:15:31,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:15:31,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:31,280 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:31,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 09:15:31,281 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:31,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:31,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1302653311, now seen corresponding path program 1 times [2024-10-24 09:15:31,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:31,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584733767] [2024-10-24 09:15:31,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:31,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:36,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:36,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:36,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584733767] [2024-10-24 09:15:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584733767] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:36,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:36,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-10-24 09:15:36,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853414949] [2024-10-24 09:15:36,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:36,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 09:15:36,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 09:15:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2024-10-24 09:15:36,608 INFO L87 Difference]: Start difference. First operand 500 states and 745 transitions. Second operand has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:40,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:40,914 INFO L93 Difference]: Finished difference Result 914 states and 1352 transitions. [2024-10-24 09:15:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 09:15:40,916 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-24 09:15:40,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:40,922 INFO L225 Difference]: With dead ends: 914 [2024-10-24 09:15:40,923 INFO L226 Difference]: Without dead ends: 587 [2024-10-24 09:15:40,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=290, Invalid=970, Unknown=0, NotChecked=0, Total=1260 [2024-10-24 09:15:40,925 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 625 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:40,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 977 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-24 09:15:40,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-10-24 09:15:40,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 520. [2024-10-24 09:15:40,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 359 states have (on average 1.3342618384401115) internal successors, (479), 363 states have internal predecessors, (479), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 775 transitions. [2024-10-24 09:15:40,973 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 775 transitions. Word has length 172 [2024-10-24 09:15:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:40,974 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 775 transitions. [2024-10-24 09:15:40,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 775 transitions. [2024-10-24 09:15:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:15:40,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:40,976 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:40,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 09:15:40,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:40,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1819806335, now seen corresponding path program 1 times [2024-10-24 09:15:40,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:40,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082818405] [2024-10-24 09:15:40,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:40,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:42,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:42,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:42,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:42,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:42,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:42,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:42,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:42,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082818405] [2024-10-24 09:15:42,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082818405] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:42,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:42,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 09:15:42,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932746197] [2024-10-24 09:15:42,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:42,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 09:15:42,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:42,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 09:15:42,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 09:15:42,337 INFO L87 Difference]: Start difference. First operand 520 states and 775 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:43,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:43,380 INFO L93 Difference]: Finished difference Result 953 states and 1418 transitions. [2024-10-24 09:15:43,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 09:15:43,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-24 09:15:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:43,386 INFO L225 Difference]: With dead ends: 953 [2024-10-24 09:15:43,386 INFO L226 Difference]: Without dead ends: 558 [2024-10-24 09:15:43,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-10-24 09:15:43,390 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 342 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:43,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 725 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 09:15:43,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-10-24 09:15:43,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 524. [2024-10-24 09:15:43,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 363 states have (on average 1.3333333333333333) internal successors, (484), 367 states have internal predecessors, (484), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 780 transitions. [2024-10-24 09:15:43,438 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 780 transitions. Word has length 172 [2024-10-24 09:15:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:43,439 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 780 transitions. [2024-10-24 09:15:43,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 780 transitions. [2024-10-24 09:15:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:15:43,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:43,441 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:43,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 09:15:43,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:43,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:43,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1010459709, now seen corresponding path program 1 times [2024-10-24 09:15:43,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:43,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565713448] [2024-10-24 09:15:43,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:43,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:46,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:46,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:46,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:46,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:46,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:46,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:46,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565713448] [2024-10-24 09:15:46,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565713448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:46,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:46,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-10-24 09:15:46,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183061857] [2024-10-24 09:15:46,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:46,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-24 09:15:46,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:46,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-24 09:15:46,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:15:46,222 INFO L87 Difference]: Start difference. First operand 524 states and 780 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:48,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:48,235 INFO L93 Difference]: Finished difference Result 929 states and 1372 transitions. [2024-10-24 09:15:48,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 09:15:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-24 09:15:48,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:48,241 INFO L225 Difference]: With dead ends: 929 [2024-10-24 09:15:48,241 INFO L226 Difference]: Without dead ends: 602 [2024-10-24 09:15:48,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2024-10-24 09:15:48,243 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 509 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:48,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1122 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-24 09:15:48,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-10-24 09:15:48,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 524. [2024-10-24 09:15:48,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 363 states have (on average 1.3333333333333333) internal successors, (484), 367 states have internal predecessors, (484), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 780 transitions. [2024-10-24 09:15:48,291 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 780 transitions. Word has length 172 [2024-10-24 09:15:48,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:48,291 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 780 transitions. [2024-10-24 09:15:48,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:48,292 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 780 transitions. [2024-10-24 09:15:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:15:48,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:48,294 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:48,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 09:15:48,294 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:48,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:48,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2003717889, now seen corresponding path program 1 times [2024-10-24 09:15:48,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:48,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387385393] [2024-10-24 09:15:48,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:48,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:50,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:51,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:51,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:51,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:51,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387385393] [2024-10-24 09:15:51,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387385393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:51,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:51,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 09:15:51,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352681304] [2024-10-24 09:15:51,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:51,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 09:15:51,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:51,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 09:15:51,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-24 09:15:51,073 INFO L87 Difference]: Start difference. First operand 524 states and 780 transitions. Second operand has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:52,819 INFO L93 Difference]: Finished difference Result 912 states and 1354 transitions. [2024-10-24 09:15:52,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 09:15:52,820 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-24 09:15:52,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:52,825 INFO L225 Difference]: With dead ends: 912 [2024-10-24 09:15:52,825 INFO L226 Difference]: Without dead ends: 585 [2024-10-24 09:15:52,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=252, Invalid=618, Unknown=0, NotChecked=0, Total=870 [2024-10-24 09:15:52,828 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 450 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1255 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:52,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1255 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 09:15:52,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-10-24 09:15:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 529. [2024-10-24 09:15:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 368 states have (on average 1.3315217391304348) internal successors, (490), 372 states have internal predecessors, (490), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 786 transitions. [2024-10-24 09:15:52,878 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 786 transitions. Word has length 172 [2024-10-24 09:15:52,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:52,878 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 786 transitions. [2024-10-24 09:15:52,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 13 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:52,879 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 786 transitions. [2024-10-24 09:15:52,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-24 09:15:52,880 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:52,880 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:52,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 09:15:52,881 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:52,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:52,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1711524287, now seen corresponding path program 1 times [2024-10-24 09:15:52,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:52,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511038708] [2024-10-24 09:15:52,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:52,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:15:56,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:15:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:15:56,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:15:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:15:56,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:15:56,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:15:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:15:56,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:15:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:15:56,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:15:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:15:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:15:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:15:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:15:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:15:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:15:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:15:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:15:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:15:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:15:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:15:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:15:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:15:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:15:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:15:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:15:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:15:56,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:15:56,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511038708] [2024-10-24 09:15:56,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511038708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:15:56,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:15:56,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-24 09:15:56,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696273734] [2024-10-24 09:15:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:15:56,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 09:15:56,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:15:56,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 09:15:56,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:15:56,985 INFO L87 Difference]: Start difference. First operand 529 states and 786 transitions. Second operand has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:59,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:15:59,587 INFO L93 Difference]: Finished difference Result 930 states and 1376 transitions. [2024-10-24 09:15:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 09:15:59,588 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 172 [2024-10-24 09:15:59,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:15:59,593 INFO L225 Difference]: With dead ends: 930 [2024-10-24 09:15:59,594 INFO L226 Difference]: Without dead ends: 603 [2024-10-24 09:15:59,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2024-10-24 09:15:59,596 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 512 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1036 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 09:15:59,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1036 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 09:15:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-10-24 09:15:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 529. [2024-10-24 09:15:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 368 states have (on average 1.3315217391304348) internal successors, (490), 372 states have internal predecessors, (490), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:15:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 786 transitions. [2024-10-24 09:15:59,647 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 786 transitions. Word has length 172 [2024-10-24 09:15:59,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:15:59,647 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 786 transitions. [2024-10-24 09:15:59,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:15:59,648 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 786 transitions. [2024-10-24 09:15:59,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-24 09:15:59,650 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:15:59,650 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:15:59,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 09:15:59,651 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:15:59,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:15:59,651 INFO L85 PathProgramCache]: Analyzing trace with hash 666642814, now seen corresponding path program 1 times [2024-10-24 09:15:59,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:15:59,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339802697] [2024-10-24 09:15:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:15:59,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:15:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:16:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:16:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:16:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:16:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:16:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:16:03,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:16:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:16:03,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:16:03,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:16:03,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:16:03,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:16:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:16:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:16:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:16:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:16:03,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:16:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:16:03,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:16:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:16:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:16:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:16:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:16:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:16:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:16:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:16:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:16:03,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:16:03,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339802697] [2024-10-24 09:16:03,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339802697] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:16:03,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:16:03,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 09:16:03,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676579762] [2024-10-24 09:16:03,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:16:03,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 09:16:03,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:16:03,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 09:16:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-24 09:16:03,472 INFO L87 Difference]: Start difference. First operand 529 states and 786 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:06,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:16:06,716 INFO L93 Difference]: Finished difference Result 1091 states and 1610 transitions. [2024-10-24 09:16:06,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 09:16:06,717 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-10-24 09:16:06,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:16:06,724 INFO L225 Difference]: With dead ends: 1091 [2024-10-24 09:16:06,724 INFO L226 Difference]: Without dead ends: 764 [2024-10-24 09:16:06,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2024-10-24 09:16:06,728 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 152 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-24 09:16:06,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1016 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-24 09:16:06,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-10-24 09:16:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 576. [2024-10-24 09:16:06,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 415 states have (on average 1.3686746987951808) internal successors, (568), 419 states have internal predecessors, (568), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:16:06,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 864 transitions. [2024-10-24 09:16:06,793 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 864 transitions. Word has length 173 [2024-10-24 09:16:06,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:16:06,793 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 864 transitions. [2024-10-24 09:16:06,794 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:06,794 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 864 transitions. [2024-10-24 09:16:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-24 09:16:06,796 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:16:06,796 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:16:06,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 09:16:06,796 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:16:06,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:16:06,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1183795838, now seen corresponding path program 1 times [2024-10-24 09:16:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:16:06,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581567268] [2024-10-24 09:16:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:16:06,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:16:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:16:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:16:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:16:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:16:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:16:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:16:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:16:09,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:16:09,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:16:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:16:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:16:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:16:09,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:16:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:16:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:16:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:16:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:16:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:16:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:16:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:16:09,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:16:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:16:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:16:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:16:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:16:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:16:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:16:09,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:16:09,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581567268] [2024-10-24 09:16:09,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581567268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:16:09,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:16:09,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 09:16:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606666432] [2024-10-24 09:16:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:16:09,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 09:16:09,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:16:09,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 09:16:09,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-10-24 09:16:09,731 INFO L87 Difference]: Start difference. First operand 576 states and 864 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:16:11,585 INFO L93 Difference]: Finished difference Result 1091 states and 1624 transitions. [2024-10-24 09:16:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 09:16:11,585 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-10-24 09:16:11,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:16:11,591 INFO L225 Difference]: With dead ends: 1091 [2024-10-24 09:16:11,591 INFO L226 Difference]: Without dead ends: 720 [2024-10-24 09:16:11,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=235, Invalid=577, Unknown=0, NotChecked=0, Total=812 [2024-10-24 09:16:11,596 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 553 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 09:16:11,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 998 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 09:16:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-10-24 09:16:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 576. [2024-10-24 09:16:11,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 415 states have (on average 1.3686746987951808) internal successors, (568), 419 states have internal predecessors, (568), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:16:11,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 864 transitions. [2024-10-24 09:16:11,647 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 864 transitions. Word has length 173 [2024-10-24 09:16:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:16:11,647 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 864 transitions. [2024-10-24 09:16:11,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 864 transitions. [2024-10-24 09:16:11,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-24 09:16:11,649 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:16:11,649 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:16:11,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 09:16:11,649 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:16:11,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:16:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash 374449212, now seen corresponding path program 1 times [2024-10-24 09:16:11,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:16:11,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805704161] [2024-10-24 09:16:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:16:11,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:16:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:16:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:16:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:16:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:16:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:16:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:16:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:16:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:16:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:16:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:16:12,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:16:12,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:16:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:16:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:16:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:16:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:16:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:16:12,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:16:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:16:12,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:16:12,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:16:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:16:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:16:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:16:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:16:12,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:16:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:16:12,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:16:12,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805704161] [2024-10-24 09:16:12,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805704161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:16:12,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:16:12,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 09:16:12,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73745541] [2024-10-24 09:16:12,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:16:12,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 09:16:12,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:16:12,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 09:16:12,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-24 09:16:12,165 INFO L87 Difference]: Start difference. First operand 576 states and 864 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:16:12,771 INFO L93 Difference]: Finished difference Result 1017 states and 1519 transitions. [2024-10-24 09:16:12,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 09:16:12,775 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-10-24 09:16:12,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:16:12,780 INFO L225 Difference]: With dead ends: 1017 [2024-10-24 09:16:12,781 INFO L226 Difference]: Without dead ends: 639 [2024-10-24 09:16:12,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=473, Unknown=0, NotChecked=0, Total=650 [2024-10-24 09:16:12,783 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 405 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 1648 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 09:16:12,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 1648 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 09:16:12,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-10-24 09:16:12,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 574. [2024-10-24 09:16:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 413 states have (on average 1.3631961259079903) internal successors, (563), 417 states have internal predecessors, (563), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:16:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 859 transitions. [2024-10-24 09:16:12,836 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 859 transitions. Word has length 173 [2024-10-24 09:16:12,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:16:12,836 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 859 transitions. [2024-10-24 09:16:12,836 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 859 transitions. [2024-10-24 09:16:12,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-24 09:16:12,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:16:12,838 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:16:12,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 09:16:12,838 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:16:12,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:16:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1367707392, now seen corresponding path program 1 times [2024-10-24 09:16:12,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:16:12,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855920609] [2024-10-24 09:16:12,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:16:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:16:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:16:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:16:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:16:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:16:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:16:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:16:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:16:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:16:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:16:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:16:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-24 09:16:15,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 09:16:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-24 09:16:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 09:16:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 09:16:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 09:16:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 09:16:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 09:16:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 09:16:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 09:16:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 09:16:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 09:16:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 09:16:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 09:16:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-24 09:16:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-24 09:16:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:15,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-10-24 09:16:15,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 09:16:15,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855920609] [2024-10-24 09:16:15,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855920609] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 09:16:15,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 09:16:15,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 09:16:15,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043955515] [2024-10-24 09:16:15,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 09:16:15,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 09:16:15,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 09:16:15,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 09:16:15,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 09:16:15,533 INFO L87 Difference]: Start difference. First operand 574 states and 859 transitions. Second operand has 10 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:17,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 09:16:17,830 INFO L93 Difference]: Finished difference Result 1120 states and 1660 transitions. [2024-10-24 09:16:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 09:16:17,832 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 173 [2024-10-24 09:16:17,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 09:16:17,838 INFO L225 Difference]: With dead ends: 1120 [2024-10-24 09:16:17,838 INFO L226 Difference]: Without dead ends: 749 [2024-10-24 09:16:17,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-10-24 09:16:17,840 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 151 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-24 09:16:17,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 994 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-24 09:16:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-10-24 09:16:17,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 587. [2024-10-24 09:16:17,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 426 states have (on average 1.3661971830985915) internal successors, (582), 430 states have internal predecessors, (582), 148 states have call successors, (148), 12 states have call predecessors, (148), 12 states have return successors, (148), 144 states have call predecessors, (148), 148 states have call successors, (148) [2024-10-24 09:16:17,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 878 transitions. [2024-10-24 09:16:17,907 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 878 transitions. Word has length 173 [2024-10-24 09:16:17,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 09:16:17,908 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 878 transitions. [2024-10-24 09:16:17,908 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), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-10-24 09:16:17,908 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 878 transitions. [2024-10-24 09:16:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-24 09:16:17,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 09:16:17,909 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 09:16:17,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 09:16:17,910 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 09:16:17,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 09:16:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1884860416, now seen corresponding path program 1 times [2024-10-24 09:16:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 09:16:17,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460278086] [2024-10-24 09:16:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 09:16:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 09:16:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 09:16:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 09:16:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-10-24 09:16:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 09:16:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-10-24 09:16:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 09:16:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 09:16:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 09:16:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-24 09:16:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 09:16:19,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 09:16:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat