./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_codestructure_steplocals_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.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 f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 02:38:10,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 02:38:10,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 02:38:10,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 02:38:10,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 02:38:10,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 02:38:10,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 02:38:10,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 02:38:10,990 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 02:38:10,990 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 02:38:10,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 02:38:10,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 02:38:10,992 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 02:38:10,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 02:38:10,993 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 02:38:10,993 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 02:38:10,993 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 02:38:10,994 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 02:38:10,994 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 02:38:10,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 02:38:10,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 02:38:10,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 02:38:10,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 02:38:10,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 02:38:10,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 02:38:10,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 02:38:11,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 02:38:11,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 02:38:11,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 02:38:11,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 02:38:11,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 02:38:11,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 02:38:11,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:38:11,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 02:38:11,002 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 02:38:11,002 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 02:38:11,002 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 02:38:11,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 02:38:11,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 02:38:11,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 02:38:11,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 02:38:11,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 02:38:11,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f39f68f55c90deb8496cdc58f18787083a238252dfdfe92f73d39acb627ae3ba [2024-11-20 02:38:11,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 02:38:11,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 02:38:11,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 02:38:11,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 02:38:11,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 02:38:11,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-20 02:38:12,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 02:38:13,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 02:38:13,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i [2024-11-20 02:38:13,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d44578754/e77c0c6a164840e1a380e79672e43885/FLAG763c8a8e1 [2024-11-20 02:38:13,098 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d44578754/e77c0c6a164840e1a380e79672e43885 [2024-11-20 02:38:13,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 02:38:13,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 02:38:13,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 02:38:13,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 02:38:13,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 02:38:13,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d295d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13, skipping insertion in model container [2024-11-20 02:38:13,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 02:38:13,363 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i[917,930] [2024-11-20 02:38:13,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:38:13,482 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 02:38:13,493 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-34.i[917,930] [2024-11-20 02:38:13,529 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:38:13,553 INFO L204 MainTranslator]: Completed translation [2024-11-20 02:38:13,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13 WrapperNode [2024-11-20 02:38:13,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 02:38:13,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 02:38:13,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 02:38:13,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 02:38:13,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,619 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 202 [2024-11-20 02:38:13,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 02:38:13,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 02:38:13,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 02:38:13,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 02:38:13,638 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,642 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,662 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 02:38:13,662 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,673 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,681 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,684 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 02:38:13,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 02:38:13,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 02:38:13,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 02:38:13,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (1/1) ... [2024-11-20 02:38:13,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:38:13,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:38:13,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 02:38:13,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 02:38:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 02:38:13,792 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 02:38:13,792 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 02:38:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 02:38:13,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 02:38:13,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 02:38:13,860 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 02:38:13,862 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 02:38:14,376 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-20 02:38:14,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 02:38:14,392 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 02:38:14,394 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 02:38:14,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:38:14 BoogieIcfgContainer [2024-11-20 02:38:14,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 02:38:14,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 02:38:14,399 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 02:38:14,402 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 02:38:14,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:38:13" (1/3) ... [2024-11-20 02:38:14,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67da7764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:38:14, skipping insertion in model container [2024-11-20 02:38:14,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:38:13" (2/3) ... [2024-11-20 02:38:14,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67da7764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:38:14, skipping insertion in model container [2024-11-20 02:38:14,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:38:14" (3/3) ... [2024-11-20 02:38:14,407 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-34.i [2024-11-20 02:38:14,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 02:38:14,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 02:38:14,505 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 02:38:14,514 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;@4d1f9752, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 02:38:14,515 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 02:38:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 02:38:14,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:14,537 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:14,538 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:14,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:14,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2122244211, now seen corresponding path program 1 times [2024-11-20 02:38:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865416639] [2024-11-20 02:38:14,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:14,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:14,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:15,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:15,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:15,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:15,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865416639] [2024-11-20 02:38:15,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865416639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:15,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:15,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 02:38:15,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271757472] [2024-11-20 02:38:15,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:15,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 02:38:15,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:15,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 02:38:15,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 02:38:15,411 INFO L87 Difference]: Start difference. First operand has 94 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:15,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:15,493 INFO L93 Difference]: Finished difference Result 222 states and 375 transitions. [2024-11-20 02:38:15,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 02:38:15,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-20 02:38:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:15,508 INFO L225 Difference]: With dead ends: 222 [2024-11-20 02:38:15,508 INFO L226 Difference]: Without dead ends: 131 [2024-11-20 02:38:15,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 02:38:15,515 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 55 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:15,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 268 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:38:15,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-20 02:38:15,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96. [2024-11-20 02:38:15,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.3880597014925373) internal successors, (93), 67 states have internal predecessors, (93), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 147 transitions. [2024-11-20 02:38:15,575 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 147 transitions. Word has length 173 [2024-11-20 02:38:15,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:15,577 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 147 transitions. [2024-11-20 02:38:15,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:15,578 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 147 transitions. [2024-11-20 02:38:15,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 02:38:15,583 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:15,583 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:15,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 02:38:15,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:15,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:15,584 INFO L85 PathProgramCache]: Analyzing trace with hash 842380533, now seen corresponding path program 1 times [2024-11-20 02:38:15,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:15,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038584511] [2024-11-20 02:38:15,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:15,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:17,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:17,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:17,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038584511] [2024-11-20 02:38:17,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038584511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:17,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:17,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:38:17,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943065713] [2024-11-20 02:38:17,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:17,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:38:17,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:17,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:38:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:38:17,503 INFO L87 Difference]: Start difference. First operand 96 states and 147 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:17,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:17,881 INFO L93 Difference]: Finished difference Result 298 states and 449 transitions. [2024-11-20 02:38:17,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:38:17,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-20 02:38:17,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:17,886 INFO L225 Difference]: With dead ends: 298 [2024-11-20 02:38:17,886 INFO L226 Difference]: Without dead ends: 205 [2024-11-20 02:38:17,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:17,888 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 277 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:17,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 425 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:38:17,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-20 02:38:17,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 117. [2024-11-20 02:38:17,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.4204545454545454) internal successors, (125), 88 states have internal predecessors, (125), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:17,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 179 transitions. [2024-11-20 02:38:17,908 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 179 transitions. Word has length 173 [2024-11-20 02:38:17,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:17,909 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 179 transitions. [2024-11-20 02:38:17,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:17,909 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 179 transitions. [2024-11-20 02:38:17,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 02:38:17,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:17,912 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:17,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 02:38:17,913 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:17,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:17,914 INFO L85 PathProgramCache]: Analyzing trace with hash -178687821, now seen corresponding path program 1 times [2024-11-20 02:38:17,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:17,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217194331] [2024-11-20 02:38:17,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:17,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:21,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:21,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:21,741 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:21,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:21,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217194331] [2024-11-20 02:38:21,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217194331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:21,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:21,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 02:38:21,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941936283] [2024-11-20 02:38:21,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:21,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 02:38:21,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:21,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 02:38:21,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:38:21,748 INFO L87 Difference]: Start difference. First operand 117 states and 179 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:24,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:24,595 INFO L93 Difference]: Finished difference Result 433 states and 656 transitions. [2024-11-20 02:38:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:38:24,596 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-20 02:38:24,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:24,599 INFO L225 Difference]: With dead ends: 433 [2024-11-20 02:38:24,600 INFO L226 Difference]: Without dead ends: 319 [2024-11-20 02:38:24,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:38:24,602 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 504 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:24,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 696 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 02:38:24,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-20 02:38:24,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 252. [2024-11-20 02:38:24,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 195 states have (on average 1.4256410256410257) internal successors, (278), 195 states have internal predecessors, (278), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 02:38:24,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 386 transitions. [2024-11-20 02:38:24,636 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 386 transitions. Word has length 173 [2024-11-20 02:38:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:24,637 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 386 transitions. [2024-11-20 02:38:24,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:24,637 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 386 transitions. [2024-11-20 02:38:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-20 02:38:24,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:24,642 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:24,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 02:38:24,643 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:24,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:24,644 INFO L85 PathProgramCache]: Analyzing trace with hash -988034447, now seen corresponding path program 1 times [2024-11-20 02:38:24,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:24,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988977077] [2024-11-20 02:38:24,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:24,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:26,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:26,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:26,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:26,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:26,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:26,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:26,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:26,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:26,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988977077] [2024-11-20 02:38:26,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988977077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:26,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:26,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:38:26,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316890506] [2024-11-20 02:38:26,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:26,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:38:26,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:26,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:38:26,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:26,352 INFO L87 Difference]: Start difference. First operand 252 states and 386 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:27,066 INFO L93 Difference]: Finished difference Result 614 states and 932 transitions. [2024-11-20 02:38:27,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:38:27,070 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 173 [2024-11-20 02:38:27,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:27,073 INFO L225 Difference]: With dead ends: 614 [2024-11-20 02:38:27,073 INFO L226 Difference]: Without dead ends: 365 [2024-11-20 02:38:27,075 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:38:27,078 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 132 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:27,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 594 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 02:38:27,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-20 02:38:27,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 142. [2024-11-20 02:38:27,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 113 states have (on average 1.424778761061947) internal successors, (161), 113 states have internal predecessors, (161), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 215 transitions. [2024-11-20 02:38:27,103 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 215 transitions. Word has length 173 [2024-11-20 02:38:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:27,104 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 215 transitions. [2024-11-20 02:38:27,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 215 transitions. [2024-11-20 02:38:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:27,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:27,107 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:27,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 02:38:27,107 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:27,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash 921830182, now seen corresponding path program 1 times [2024-11-20 02:38:27,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:27,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474531262] [2024-11-20 02:38:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:27,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:29,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:29,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:29,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:29,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:29,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:29,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:29,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:29,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474531262] [2024-11-20 02:38:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474531262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:29,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:38:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907451982] [2024-11-20 02:38:29,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:29,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:38:29,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:38:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:38:29,354 INFO L87 Difference]: Start difference. First operand 142 states and 215 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:30,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:30,300 INFO L93 Difference]: Finished difference Result 411 states and 613 transitions. [2024-11-20 02:38:30,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:38:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:30,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:30,306 INFO L225 Difference]: With dead ends: 411 [2024-11-20 02:38:30,306 INFO L226 Difference]: Without dead ends: 272 [2024-11-20 02:38:30,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:38:30,312 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 371 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:30,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 497 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 02:38:30,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-20 02:38:30,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 158. [2024-11-20 02:38:30,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:30,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-20 02:38:30,329 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-20 02:38:30,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:30,332 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-20 02:38:30,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:30,332 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-20 02:38:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:30,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:30,336 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:30,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 02:38:30,337 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:30,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:30,337 INFO L85 PathProgramCache]: Analyzing trace with hash 112483556, now seen corresponding path program 1 times [2024-11-20 02:38:30,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:30,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312980178] [2024-11-20 02:38:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:30,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:32,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:32,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:32,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:32,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:32,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:32,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:32,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312980178] [2024-11-20 02:38:32,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312980178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:32,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:32,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:38:32,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580781239] [2024-11-20 02:38:32,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:32,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:38:32,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:32,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:38:32,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:32,572 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:34,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:34,039 INFO L93 Difference]: Finished difference Result 469 states and 697 transitions. [2024-11-20 02:38:34,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:38:34,040 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:34,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:34,042 INFO L225 Difference]: With dead ends: 469 [2024-11-20 02:38:34,043 INFO L226 Difference]: Without dead ends: 314 [2024-11-20 02:38:34,043 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:38:34,044 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 423 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:34,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 533 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-20 02:38:34,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-20 02:38:34,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 144. [2024-11-20 02:38:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.4260869565217391) internal successors, (164), 115 states have internal predecessors, (164), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 218 transitions. [2024-11-20 02:38:34,054 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 218 transitions. Word has length 174 [2024-11-20 02:38:34,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:34,055 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 218 transitions. [2024-11-20 02:38:34,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:34,055 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 218 transitions. [2024-11-20 02:38:34,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:34,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:34,057 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:34,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 02:38:34,058 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:34,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:34,059 INFO L85 PathProgramCache]: Analyzing trace with hash -99238172, now seen corresponding path program 1 times [2024-11-20 02:38:34,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:34,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374221577] [2024-11-20 02:38:34,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:34,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:35,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:35,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:35,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374221577] [2024-11-20 02:38:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374221577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:35,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:35,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 02:38:35,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404526159] [2024-11-20 02:38:35,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:35,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 02:38:35,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:35,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 02:38:35,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:38:35,873 INFO L87 Difference]: Start difference. First operand 144 states and 218 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:36,651 INFO L93 Difference]: Finished difference Result 400 states and 598 transitions. [2024-11-20 02:38:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:38:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:36,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:36,655 INFO L225 Difference]: With dead ends: 400 [2024-11-20 02:38:36,655 INFO L226 Difference]: Without dead ends: 259 [2024-11-20 02:38:36,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:38:36,656 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 263 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:36,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 494 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 02:38:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-20 02:38:36,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 158. [2024-11-20 02:38:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 129 states have (on average 1.441860465116279) internal successors, (186), 129 states have internal predecessors, (186), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 240 transitions. [2024-11-20 02:38:36,669 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 240 transitions. Word has length 174 [2024-11-20 02:38:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:36,669 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 240 transitions. [2024-11-20 02:38:36,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 240 transitions. [2024-11-20 02:38:36,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:36,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:36,673 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:36,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 02:38:36,674 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:36,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:36,674 INFO L85 PathProgramCache]: Analyzing trace with hash -908584798, now seen corresponding path program 1 times [2024-11-20 02:38:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:36,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634396067] [2024-11-20 02:38:36,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:36,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:40,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:40,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:40,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:40,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:40,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:40,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:40,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634396067] [2024-11-20 02:38:40,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634396067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:40,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:40,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:38:40,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558679141] [2024-11-20 02:38:40,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:40,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:38:40,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:40,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:38:40,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:38:40,244 INFO L87 Difference]: Start difference. First operand 158 states and 240 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:42,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:42,087 INFO L93 Difference]: Finished difference Result 565 states and 843 transitions. [2024-11-20 02:38:42,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:38:42,088 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:42,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:42,090 INFO L225 Difference]: With dead ends: 565 [2024-11-20 02:38:42,091 INFO L226 Difference]: Without dead ends: 410 [2024-11-20 02:38:42,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:38:42,093 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 413 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:42,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 727 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 02:38:42,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-20 02:38:42,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2024-11-20 02:38:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.4488188976377954) internal successors, (184), 127 states have internal predecessors, (184), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-20 02:38:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 238 transitions. [2024-11-20 02:38:42,102 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 238 transitions. Word has length 174 [2024-11-20 02:38:42,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:42,102 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 238 transitions. [2024-11-20 02:38:42,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:42,103 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 238 transitions. [2024-11-20 02:38:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:42,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:42,104 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:42,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 02:38:42,105 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:42,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:42,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1072314524, now seen corresponding path program 1 times [2024-11-20 02:38:42,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:42,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073490089] [2024-11-20 02:38:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:42,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:42,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:42,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:42,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:42,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:42,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:42,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:42,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073490089] [2024-11-20 02:38:42,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073490089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:42,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:42,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:38:42,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050660241] [2024-11-20 02:38:42,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:42,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:38:42,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:42,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:38:42,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:38:42,424 INFO L87 Difference]: Start difference. First operand 156 states and 238 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:42,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:42,747 INFO L93 Difference]: Finished difference Result 360 states and 547 transitions. [2024-11-20 02:38:42,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:38:42,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:42,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:42,750 INFO L225 Difference]: With dead ends: 360 [2024-11-20 02:38:42,751 INFO L226 Difference]: Without dead ends: 207 [2024-11-20 02:38:42,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:42,752 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 71 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:42,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 629 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:38:42,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-20 02:38:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2024-11-20 02:38:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 170 states have (on average 1.4529411764705882) internal successors, (247), 171 states have internal predecessors, (247), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 02:38:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 309 transitions. [2024-11-20 02:38:42,769 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 309 transitions. Word has length 174 [2024-11-20 02:38:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:42,770 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 309 transitions. [2024-11-20 02:38:42,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:42,770 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 309 transitions. [2024-11-20 02:38:42,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:42,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:42,774 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:42,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 02:38:42,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:42,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash -371249946, now seen corresponding path program 1 times [2024-11-20 02:38:42,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:42,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058572293] [2024-11-20 02:38:42,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:42,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:42,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:43,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:43,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:43,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:43,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:43,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:43,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:43,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058572293] [2024-11-20 02:38:43,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058572293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:43,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:43,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:38:43,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173830158] [2024-11-20 02:38:43,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:43,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:38:43,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:43,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:38:43,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:38:43,042 INFO L87 Difference]: Start difference. First operand 204 states and 309 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:43,226 INFO L93 Difference]: Finished difference Result 406 states and 615 transitions. [2024-11-20 02:38:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:38:43,227 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:43,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:43,229 INFO L225 Difference]: With dead ends: 406 [2024-11-20 02:38:43,229 INFO L226 Difference]: Without dead ends: 205 [2024-11-20 02:38:43,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:38:43,232 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 68 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:43,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 373 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:38:43,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-20 02:38:43,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 202. [2024-11-20 02:38:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 168 states have (on average 1.4523809523809523) internal successors, (244), 169 states have internal predecessors, (244), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 02:38:43,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 306 transitions. [2024-11-20 02:38:43,245 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 306 transitions. Word has length 174 [2024-11-20 02:38:43,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:43,246 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 306 transitions. [2024-11-20 02:38:43,246 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 306 transitions. [2024-11-20 02:38:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:43,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:43,250 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:43,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 02:38:43,250 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:43,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash 103061529, now seen corresponding path program 1 times [2024-11-20 02:38:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:43,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490421570] [2024-11-20 02:38:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:43,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:43,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:43,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:43,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:43,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:43,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490421570] [2024-11-20 02:38:43,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490421570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:43,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:43,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:38:43,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589389731] [2024-11-20 02:38:43,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:43,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:38:43,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:43,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:38:43,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:38:43,882 INFO L87 Difference]: Start difference. First operand 202 states and 306 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:44,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:44,153 INFO L93 Difference]: Finished difference Result 604 states and 909 transitions. [2024-11-20 02:38:44,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:38:44,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:44,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:44,157 INFO L225 Difference]: With dead ends: 604 [2024-11-20 02:38:44,157 INFO L226 Difference]: Without dead ends: 405 [2024-11-20 02:38:44,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:38:44,160 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 283 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:44,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 518 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:38:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-20 02:38:44,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 230. [2024-11-20 02:38:44,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 02:38:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-20 02:38:44,173 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-20 02:38:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:44,173 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-20 02:38:44,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:44,175 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-20 02:38:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:44,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:44,177 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:44,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 02:38:44,177 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:44,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:44,178 INFO L85 PathProgramCache]: Analyzing trace with hash -918006825, now seen corresponding path program 1 times [2024-11-20 02:38:44,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:44,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545742480] [2024-11-20 02:38:44,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:44,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:44,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:44,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:44,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:44,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:44,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:44,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545742480] [2024-11-20 02:38:44,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545742480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:44,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:44,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:38:44,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126159617] [2024-11-20 02:38:44,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:44,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:38:44,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:44,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:38:44,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:38:44,790 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:45,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:45,358 INFO L93 Difference]: Finished difference Result 602 states and 900 transitions. [2024-11-20 02:38:45,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:38:45,359 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:45,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:45,362 INFO L225 Difference]: With dead ends: 602 [2024-11-20 02:38:45,362 INFO L226 Difference]: Without dead ends: 375 [2024-11-20 02:38:45,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:45,363 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 107 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:45,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 766 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 02:38:45,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-20 02:38:45,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 230. [2024-11-20 02:38:45,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 196 states have (on average 1.4489795918367347) internal successors, (284), 197 states have internal predecessors, (284), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 02:38:45,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 346 transitions. [2024-11-20 02:38:45,374 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 346 transitions. Word has length 174 [2024-11-20 02:38:45,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:45,374 INFO L471 AbstractCegarLoop]: Abstraction has 230 states and 346 transitions. [2024-11-20 02:38:45,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:45,375 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 346 transitions. [2024-11-20 02:38:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:45,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:45,376 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:45,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 02:38:45,376 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:45,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:45,377 INFO L85 PathProgramCache]: Analyzing trace with hash 920709979, now seen corresponding path program 1 times [2024-11-20 02:38:45,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:45,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990383957] [2024-11-20 02:38:45,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:45,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:45,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:46,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:46,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:46,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:46,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990383957] [2024-11-20 02:38:46,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990383957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:46,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:46,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:38:46,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317854055] [2024-11-20 02:38:46,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:46,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:38:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:38:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:38:46,528 INFO L87 Difference]: Start difference. First operand 230 states and 346 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:47,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:47,032 INFO L93 Difference]: Finished difference Result 672 states and 1002 transitions. [2024-11-20 02:38:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:38:47,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:47,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:47,036 INFO L225 Difference]: With dead ends: 672 [2024-11-20 02:38:47,036 INFO L226 Difference]: Without dead ends: 445 [2024-11-20 02:38:47,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:38:47,039 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 405 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:47,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 481 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 02:38:47,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-20 02:38:47,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 232. [2024-11-20 02:38:47,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 198 states have (on average 1.4494949494949494) internal successors, (287), 199 states have internal predecessors, (287), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-20 02:38:47,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 349 transitions. [2024-11-20 02:38:47,055 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 349 transitions. Word has length 174 [2024-11-20 02:38:47,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:47,057 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 349 transitions. [2024-11-20 02:38:47,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 349 transitions. [2024-11-20 02:38:47,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:47,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:47,059 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:47,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 02:38:47,059 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:47,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:47,060 INFO L85 PathProgramCache]: Analyzing trace with hash -100358375, now seen corresponding path program 1 times [2024-11-20 02:38:47,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:47,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695906726] [2024-11-20 02:38:47,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:47,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:49,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:49,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:49,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:49,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:49,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:49,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:49,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:49,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:49,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695906726] [2024-11-20 02:38:49,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695906726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:49,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:49,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:38:49,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882249779] [2024-11-20 02:38:49,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:49,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:38:49,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:49,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:38:49,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:38:49,920 INFO L87 Difference]: Start difference. First operand 232 states and 349 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:54,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:38:54,911 INFO L93 Difference]: Finished difference Result 919 states and 1354 transitions. [2024-11-20 02:38:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:38:54,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 174 [2024-11-20 02:38:54,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:38:54,916 INFO L225 Difference]: With dead ends: 919 [2024-11-20 02:38:54,916 INFO L226 Difference]: Without dead ends: 690 [2024-11-20 02:38:54,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2024-11-20 02:38:54,919 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 732 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 1507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 02:38:54,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 787 Invalid, 1507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 02:38:54,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-20 02:38:54,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 380. [2024-11-20 02:38:54,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 313 states have (on average 1.4313099041533546) internal successors, (448), 315 states have internal predecessors, (448), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 02:38:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 572 transitions. [2024-11-20 02:38:54,944 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 572 transitions. Word has length 174 [2024-11-20 02:38:54,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:38:54,944 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 572 transitions. [2024-11-20 02:38:54,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:38:54,944 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 572 transitions. [2024-11-20 02:38:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-20 02:38:54,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:38:54,946 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:38:54,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 02:38:54,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:38:54,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:38:54,947 INFO L85 PathProgramCache]: Analyzing trace with hash -909705001, now seen corresponding path program 1 times [2024-11-20 02:38:54,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:38:54,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910615857] [2024-11-20 02:38:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:38:54,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:38:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:38:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:38:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:38:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:38:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:38:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:38:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:38:59,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:38:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:38:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:38:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:38:59,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:38:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:38:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:38:59,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:38:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:38:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:38:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:38:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:38:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:38:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:38:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:38:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:38:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:38:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:38:59,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:38:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:38:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:38:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:38:59,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:38:59,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910615857] [2024-11-20 02:38:59,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910615857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:38:59,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:38:59,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:38:59,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016745064] [2024-11-20 02:38:59,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:38:59,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:38:59,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:38:59,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:38:59,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:38:59,199 INFO L87 Difference]: Start difference. First operand 380 states and 572 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 02:39:03,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:03,711 INFO L93 Difference]: Finished difference Result 889 states and 1331 transitions. [2024-11-20 02:39:03,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:39:03,712 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 174 [2024-11-20 02:39:03,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:03,715 INFO L225 Difference]: With dead ends: 889 [2024-11-20 02:39:03,715 INFO L226 Difference]: Without dead ends: 523 [2024-11-20 02:39:03,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2024-11-20 02:39:03,719 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 451 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 1883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:03,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 1013 Invalid, 1883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-20 02:39:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-20 02:39:03,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 382. [2024-11-20 02:39:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 315 states have (on average 1.4253968253968254) internal successors, (449), 317 states have internal predecessors, (449), 62 states have call successors, (62), 4 states have call predecessors, (62), 4 states have return successors, (62), 60 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-20 02:39:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 573 transitions. [2024-11-20 02:39:03,743 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 573 transitions. Word has length 174 [2024-11-20 02:39:03,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:03,744 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 573 transitions. [2024-11-20 02:39:03,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-20 02:39:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 573 transitions. [2024-11-20 02:39:03,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:03,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:03,745 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:03,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 02:39:03,746 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:03,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:03,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1960065966, now seen corresponding path program 1 times [2024-11-20 02:39:03,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:03,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556045351] [2024-11-20 02:39:03,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:03,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:03,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:03,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:03,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:03,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:03,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:03,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:03,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:03,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556045351] [2024-11-20 02:39:03,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556045351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:03,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:03,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:39:03,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172550896] [2024-11-20 02:39:03,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:03,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:39:03,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:03,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:39:03,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:39:03,907 INFO L87 Difference]: Start difference. First operand 382 states and 573 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:04,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:04,022 INFO L93 Difference]: Finished difference Result 920 states and 1385 transitions. [2024-11-20 02:39:04,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:39:04,023 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:04,026 INFO L225 Difference]: With dead ends: 920 [2024-11-20 02:39:04,026 INFO L226 Difference]: Without dead ends: 552 [2024-11-20 02:39:04,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:39:04,028 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 77 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:04,029 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 383 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:39:04,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-11-20 02:39:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 497. [2024-11-20 02:39:04,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 399 states have (on average 1.3934837092731829) internal successors, (556), 404 states have internal predecessors, (556), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:04,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 736 transitions. [2024-11-20 02:39:04,057 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 736 transitions. Word has length 175 [2024-11-20 02:39:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:04,058 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 736 transitions. [2024-11-20 02:39:04,058 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:04,058 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 736 transitions. [2024-11-20 02:39:04,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:04,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:04,060 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:04,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 02:39:04,060 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:04,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:04,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1251315180, now seen corresponding path program 1 times [2024-11-20 02:39:04,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:04,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317265244] [2024-11-20 02:39:04,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:04,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:04,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:04,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:04,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:04,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:04,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:04,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:04,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:04,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317265244] [2024-11-20 02:39:04,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317265244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:04,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:04,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:39:04,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753258350] [2024-11-20 02:39:04,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:04,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:39:04,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:04,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:39:04,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:39:04,188 INFO L87 Difference]: Start difference. First operand 497 states and 736 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:04,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:04,334 INFO L93 Difference]: Finished difference Result 820 states and 1211 transitions. [2024-11-20 02:39:04,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:39:04,335 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:04,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:04,338 INFO L225 Difference]: With dead ends: 820 [2024-11-20 02:39:04,338 INFO L226 Difference]: Without dead ends: 502 [2024-11-20 02:39:04,339 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 [2024-11-20 02:39:04,340 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 66 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:04,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 398 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:39:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-20 02:39:04,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 495. [2024-11-20 02:39:04,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 397 states have (on average 1.3904282115869018) internal successors, (552), 402 states have internal predecessors, (552), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:04,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 732 transitions. [2024-11-20 02:39:04,365 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 732 transitions. Word has length 175 [2024-11-20 02:39:04,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:04,366 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 732 transitions. [2024-11-20 02:39:04,366 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, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:04,366 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 732 transitions. [2024-11-20 02:39:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:04,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:04,368 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:04,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 02:39:04,368 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:04,369 INFO L85 PathProgramCache]: Analyzing trace with hash -686128964, now seen corresponding path program 1 times [2024-11-20 02:39:04,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:04,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095583287] [2024-11-20 02:39:04,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:04,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:07,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:07,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:07,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:07,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:07,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095583287] [2024-11-20 02:39:07,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095583287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:07,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:07,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:39:07,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675629573] [2024-11-20 02:39:07,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:07,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:39:07,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:07,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:39:07,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:39:07,177 INFO L87 Difference]: Start difference. First operand 495 states and 732 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:09,911 INFO L93 Difference]: Finished difference Result 1269 states and 1837 transitions. [2024-11-20 02:39:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:39:09,912 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:09,916 INFO L225 Difference]: With dead ends: 1269 [2024-11-20 02:39:09,916 INFO L226 Difference]: Without dead ends: 953 [2024-11-20 02:39:09,917 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:39:09,918 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 602 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:09,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 922 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 02:39:09,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-20 02:39:09,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 504. [2024-11-20 02:39:09,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 406 states have (on average 1.3891625615763548) internal successors, (564), 411 states have internal predecessors, (564), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 744 transitions. [2024-11-20 02:39:09,949 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 744 transitions. Word has length 175 [2024-11-20 02:39:09,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:09,950 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 744 transitions. [2024-11-20 02:39:09,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 744 transitions. [2024-11-20 02:39:09,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:09,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:09,952 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:09,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 02:39:09,952 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:09,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:09,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1495475590, now seen corresponding path program 1 times [2024-11-20 02:39:09,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:09,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534065966] [2024-11-20 02:39:09,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:09,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:09,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:11,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:11,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:11,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:11,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:11,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:11,505 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:11,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:11,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534065966] [2024-11-20 02:39:11,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534065966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:11,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:11,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:39:11,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151522224] [2024-11-20 02:39:11,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:11,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:39:11,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:11,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:39:11,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:39:11,507 INFO L87 Difference]: Start difference. First operand 504 states and 744 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:12,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:12,332 INFO L93 Difference]: Finished difference Result 1184 states and 1728 transitions. [2024-11-20 02:39:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:39:12,334 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:12,338 INFO L225 Difference]: With dead ends: 1184 [2024-11-20 02:39:12,338 INFO L226 Difference]: Without dead ends: 859 [2024-11-20 02:39:12,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:39:12,340 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 286 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:12,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 809 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 02:39:12,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-20 02:39:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 476. [2024-11-20 02:39:12,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-20 02:39:12,369 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-20 02:39:12,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:12,370 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-20 02:39:12,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:12,370 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-20 02:39:12,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:12,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:12,372 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:12,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 02:39:12,372 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:12,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1707197318, now seen corresponding path program 1 times [2024-11-20 02:39:12,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:12,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323112551] [2024-11-20 02:39:12,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:12,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:15,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:15,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:15,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:15,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323112551] [2024-11-20 02:39:15,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323112551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:15,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:15,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:39:15,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229542989] [2024-11-20 02:39:15,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:15,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:39:15,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:15,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:39:15,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:39:15,106 INFO L87 Difference]: Start difference. First operand 476 states and 701 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:17,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:17,092 INFO L93 Difference]: Finished difference Result 1093 states and 1592 transitions. [2024-11-20 02:39:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:39:17,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:17,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:17,096 INFO L225 Difference]: With dead ends: 1093 [2024-11-20 02:39:17,096 INFO L226 Difference]: Without dead ends: 796 [2024-11-20 02:39:17,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-11-20 02:39:17,098 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 366 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:17,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 858 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-20 02:39:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2024-11-20 02:39:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 492. [2024-11-20 02:39:17,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 394 states have (on average 1.380710659898477) internal successors, (544), 399 states have internal predecessors, (544), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:17,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 724 transitions. [2024-11-20 02:39:17,127 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 724 transitions. Word has length 175 [2024-11-20 02:39:17,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:17,127 INFO L471 AbstractCegarLoop]: Abstraction has 492 states and 724 transitions. [2024-11-20 02:39:17,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:17,127 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 724 transitions. [2024-11-20 02:39:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-20 02:39:17,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:17,129 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:17,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 02:39:17,129 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:17,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1778423352, now seen corresponding path program 1 times [2024-11-20 02:39:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:17,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611876059] [2024-11-20 02:39:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:17,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:17,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 02:39:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 02:39:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 02:39:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 02:39:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 02:39:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 02:39:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 02:39:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 02:39:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 02:39:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 02:39:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 02:39:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 02:39:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 02:39:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 02:39:20,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-20 02:39:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 02:39:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-20 02:39:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 02:39:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-20 02:39:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 02:39:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-20 02:39:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 02:39:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-20 02:39:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 02:39:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-20 02:39:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-20 02:39:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-20 02:39:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:39:20,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-20 02:39:20,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:39:20,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611876059] [2024-11-20 02:39:20,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611876059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:39:20,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:39:20,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:39:20,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266309794] [2024-11-20 02:39:20,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:39:20,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:39:20,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:39:20,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:39:20,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:39:20,285 INFO L87 Difference]: Start difference. First operand 492 states and 724 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:21,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:39:21,351 INFO L93 Difference]: Finished difference Result 1066 states and 1558 transitions. [2024-11-20 02:39:21,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:39:21,352 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 175 [2024-11-20 02:39:21,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:39:21,356 INFO L225 Difference]: With dead ends: 1066 [2024-11-20 02:39:21,356 INFO L226 Difference]: Without dead ends: 753 [2024-11-20 02:39:21,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:39:21,358 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 264 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-20 02:39:21,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 768 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-20 02:39:21,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-20 02:39:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 476. [2024-11-20 02:39:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 378 states have (on average 1.3783068783068784) internal successors, (521), 383 states have internal predecessors, (521), 90 states have call successors, (90), 7 states have call predecessors, (90), 7 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-20 02:39:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 701 transitions. [2024-11-20 02:39:21,391 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 701 transitions. Word has length 175 [2024-11-20 02:39:21,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:39:21,391 INFO L471 AbstractCegarLoop]: Abstraction has 476 states and 701 transitions. [2024-11-20 02:39:21,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-11-20 02:39:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 701 transitions. [2024-11-20 02:39:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-20 02:39:21,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:39:21,393 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:39:21,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 02:39:21,393 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:39:21,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:39:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash 848897420, now seen corresponding path program 1 times [2024-11-20 02:39:21,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:39:21,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075984632] [2024-11-20 02:39:21,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:39:21,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:39:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat