./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.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 fc4d3fa2ecedd768012cc7751a736db9e672ba88ad0e6eb887b83762ab048578 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:01:21,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:01:21,345 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:01:21,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:01:21,354 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:01:21,385 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:01:21,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:01:21,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:01:21,386 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:01:21,387 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:01:21,388 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:01:21,388 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:01:21,390 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:01:21,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:01:21,392 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:01:21,393 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:01:21,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:01:21,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:01:21,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:01:21,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:01:21,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:01:21,401 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:01:21,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:01:21,402 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:01:21,402 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:01:21,402 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:01:21,403 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:01:21,403 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:01:21,403 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:01:21,403 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:01:21,404 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:01:21,404 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:01:21,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:01:21,404 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:01:21,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:01:21,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:01:21,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:01:21,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:01:21,406 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:01:21,406 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:01:21,406 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:01:21,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:01:21,408 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc4d3fa2ecedd768012cc7751a736db9e672ba88ad0e6eb887b83762ab048578 [2024-11-19 00:01:21,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:01:21,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:01:21,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:01:21,708 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:01:21,708 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:01:21,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i [2024-11-19 00:01:23,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:01:23,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:01:23,487 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-14.i [2024-11-19 00:01:23,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db872e8fb/1b5a0492003145de9e7973a8d97e8529/FLAGff2584edb [2024-11-19 00:01:23,516 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db872e8fb/1b5a0492003145de9e7973a8d97e8529 [2024-11-19 00:01:23,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:01:23,520 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:01:23,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:01:23,523 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:01:23,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:01:23,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:01:23" (1/1) ... [2024-11-19 00:01:23,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d31519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:23, skipping insertion in model container [2024-11-19 00:01:23,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:01:23" (1/1) ... [2024-11-19 00:01:23,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:01:23,724 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_operatoramount_amount500_file-14.i[916,929] [2024-11-19 00:01:23,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:01:23,944 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:01:23,960 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_operatoramount_amount500_file-14.i[916,929] [2024-11-19 00:01:24,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:01:24,091 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:01:24,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24 WrapperNode [2024-11-19 00:01:24,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:01:24,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:01:24,096 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:01:24,096 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:01:24,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,126 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,318 INFO L138 Inliner]: procedures = 26, calls = 97, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 877 [2024-11-19 00:01:24,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:01:24,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:01:24,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:01:24,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:01:24,332 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,348 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,385 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]. [2024-11-19 00:01:24,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:01:24,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:01:24,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:01:24,462 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:01:24,463 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (1/1) ... [2024-11-19 00:01:24,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:01:24,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:01:24,490 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) [2024-11-19 00:01:24,493 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 [2024-11-19 00:01:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:01:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:01:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:01:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:01:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:01:24,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:01:24,642 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:01:24,644 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:01:25,964 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-19 00:01:25,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:01:25,987 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:01:25,988 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:01:25,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:01:25 BoogieIcfgContainer [2024-11-19 00:01:25,988 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:01:25,991 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:01:25,991 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:01:25,994 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:01:25,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:01:23" (1/3) ... [2024-11-19 00:01:25,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a3d974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:01:25, skipping insertion in model container [2024-11-19 00:01:25,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:01:24" (2/3) ... [2024-11-19 00:01:25,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9a3d974 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:01:25, skipping insertion in model container [2024-11-19 00:01:25,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:01:25" (3/3) ... [2024-11-19 00:01:25,997 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-14.i [2024-11-19 00:01:26,009 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:01:26,009 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:01:26,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:01:26,090 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;@10d14b2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:01:26,091 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:01:26,096 INFO L276 IsEmpty]: Start isEmpty. Operand has 360 states, 273 states have (on average 1.5274725274725274) internal successors, (417), 274 states have internal predecessors, (417), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-19 00:01:26,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:26,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:26,130 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:26,131 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:26,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:26,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1240648766, now seen corresponding path program 1 times [2024-11-19 00:01:26,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:26,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754722830] [2024-11-19 00:01:26,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:26,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:26,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2024-11-19 00:01:26,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:26,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754722830] [2024-11-19 00:01:26,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754722830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:01:26,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840289965] [2024-11-19 00:01:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:26,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:01:26,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:01:26,725 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:01:26,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:01:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:27,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 1370 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:01:27,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:01:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 13778 trivial. 0 not checked. [2024-11-19 00:01:27,161 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:01:27,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840289965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:27,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:01:27,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:01:27,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533711516] [2024-11-19 00:01:27,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:27,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:01:27,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:27,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:01:27,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:01:27,197 INFO L87 Difference]: Start difference. First operand has 360 states, 273 states have (on average 1.5274725274725274) internal successors, (417), 274 states have internal predecessors, (417), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-19 00:01:27,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:27,252 INFO L93 Difference]: Finished difference Result 713 states and 1248 transitions. [2024-11-19 00:01:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:01:27,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) Word has length 574 [2024-11-19 00:01:27,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:27,266 INFO L225 Difference]: With dead ends: 713 [2024-11-19 00:01:27,266 INFO L226 Difference]: Without dead ends: 356 [2024-11-19 00:01:27,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:01:27,273 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 578 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:27,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:01:27,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-19 00:01:27,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2024-11-19 00:01:27,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 270 states have (on average 1.5185185185185186) internal successors, (410), 270 states have internal predecessors, (410), 84 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-19 00:01:27,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 578 transitions. [2024-11-19 00:01:27,361 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 578 transitions. Word has length 574 [2024-11-19 00:01:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:27,361 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 578 transitions. [2024-11-19 00:01:27,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-19 00:01:27,363 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 578 transitions. [2024-11-19 00:01:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:27,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:27,374 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:27,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:01:27,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:01:27,575 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:27,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:27,577 INFO L85 PathProgramCache]: Analyzing trace with hash 2106022426, now seen corresponding path program 1 times [2024-11-19 00:01:27,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:27,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054547284] [2024-11-19 00:01:27,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:27,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:27,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:28,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054547284] [2024-11-19 00:01:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054547284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:28,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:28,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:01:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043472144] [2024-11-19 00:01:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:28,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:01:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:28,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:01:28,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:28,079 INFO L87 Difference]: Start difference. First operand 356 states and 578 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:28,190 INFO L93 Difference]: Finished difference Result 960 states and 1557 transitions. [2024-11-19 00:01:28,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:01:28,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2024-11-19 00:01:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:28,199 INFO L225 Difference]: With dead ends: 960 [2024-11-19 00:01:28,200 INFO L226 Difference]: Without dead ends: 607 [2024-11-19 00:01:28,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:28,203 INFO L432 NwaCegarLoop]: 835 mSDtfsCounter, 395 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:28,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1395 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:01:28,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-19 00:01:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2024-11-19 00:01:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 480 states have (on average 1.5354166666666667) internal successors, (737), 481 states have internal predecessors, (737), 121 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-19 00:01:28,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 979 transitions. [2024-11-19 00:01:28,261 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 979 transitions. Word has length 574 [2024-11-19 00:01:28,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:28,264 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 979 transitions. [2024-11-19 00:01:28,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 979 transitions. [2024-11-19 00:01:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:28,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:28,273 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:28,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:01:28,273 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:28,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash -622186920, now seen corresponding path program 1 times [2024-11-19 00:01:28,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:28,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136424976] [2024-11-19 00:01:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:28,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:28,669 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:28,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:28,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136424976] [2024-11-19 00:01:28,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136424976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:28,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:28,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:01:28,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455955024] [2024-11-19 00:01:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:28,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:01:28,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:01:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:28,678 INFO L87 Difference]: Start difference. First operand 604 states and 979 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:28,852 INFO L93 Difference]: Finished difference Result 1743 states and 2821 transitions. [2024-11-19 00:01:28,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:01:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2024-11-19 00:01:28,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:28,865 INFO L225 Difference]: With dead ends: 1743 [2024-11-19 00:01:28,865 INFO L226 Difference]: Without dead ends: 1142 [2024-11-19 00:01:28,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:28,870 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 486 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:28,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 1484 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:01:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-19 00:01:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 820. [2024-11-19 00:01:28,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 696 states have (on average 1.5747126436781609) internal successors, (1096), 697 states have internal predecessors, (1096), 121 states have call successors, (121), 2 states have call predecessors, (121), 2 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-19 00:01:28,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1338 transitions. [2024-11-19 00:01:28,945 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1338 transitions. Word has length 574 [2024-11-19 00:01:28,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:28,949 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1338 transitions. [2024-11-19 00:01:28,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:28,949 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1338 transitions. [2024-11-19 00:01:28,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:28,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:28,957 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:28,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:01:28,958 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:28,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:28,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1680024998, now seen corresponding path program 1 times [2024-11-19 00:01:28,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:28,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14924988] [2024-11-19 00:01:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:28,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:29,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:29,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14924988] [2024-11-19 00:01:29,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14924988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:29,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:29,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:01:29,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220819612] [2024-11-19 00:01:29,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:29,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:01:29,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:29,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:01:29,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:29,286 INFO L87 Difference]: Start difference. First operand 820 states and 1338 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:29,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:29,389 INFO L93 Difference]: Finished difference Result 2371 states and 3869 transitions. [2024-11-19 00:01:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:01:29,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2024-11-19 00:01:29,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:29,397 INFO L225 Difference]: With dead ends: 2371 [2024-11-19 00:01:29,397 INFO L226 Difference]: Without dead ends: 1554 [2024-11-19 00:01:29,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:29,416 INFO L432 NwaCegarLoop]: 898 mSDtfsCounter, 422 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:29,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1447 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:01:29,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2024-11-19 00:01:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1551. [2024-11-19 00:01:29,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1551 states, 1327 states have (on average 1.573474001507159) internal successors, (2088), 1330 states have internal predecessors, (2088), 219 states have call successors, (219), 4 states have call predecessors, (219), 4 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2024-11-19 00:01:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1551 states to 1551 states and 2526 transitions. [2024-11-19 00:01:29,473 INFO L78 Accepts]: Start accepts. Automaton has 1551 states and 2526 transitions. Word has length 574 [2024-11-19 00:01:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:29,474 INFO L471 AbstractCegarLoop]: Abstraction has 1551 states and 2526 transitions. [2024-11-19 00:01:29,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1551 states and 2526 transitions. [2024-11-19 00:01:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:29,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:29,478 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:29,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:01:29,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:29,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:29,481 INFO L85 PathProgramCache]: Analyzing trace with hash -355168804, now seen corresponding path program 1 times [2024-11-19 00:01:29,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:29,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783824316] [2024-11-19 00:01:29,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:29,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:29,956 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:29,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:29,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783824316] [2024-11-19 00:01:29,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783824316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:29,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:29,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:01:29,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278093570] [2024-11-19 00:01:29,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:29,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:01:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:01:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:01:29,959 INFO L87 Difference]: Start difference. First operand 1551 states and 2526 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:30,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:30,569 INFO L93 Difference]: Finished difference Result 9883 states and 16108 transitions. [2024-11-19 00:01:30,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:01:30,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2024-11-19 00:01:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:30,600 INFO L225 Difference]: With dead ends: 9883 [2024-11-19 00:01:30,600 INFO L226 Difference]: Without dead ends: 8335 [2024-11-19 00:01:30,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:01:30,608 INFO L432 NwaCegarLoop]: 1727 mSDtfsCounter, 1816 mSDsluCounter, 2986 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 4713 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:30,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 4713 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:01:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8335 states. [2024-11-19 00:01:30,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8335 to 6189. [2024-11-19 00:01:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6189 states, 5296 states have (on average 1.5657099697885197) internal successors, (8292), 5308 states have internal predecessors, (8292), 876 states have call successors, (876), 16 states have call predecessors, (876), 16 states have return successors, (876), 864 states have call predecessors, (876), 876 states have call successors, (876) [2024-11-19 00:01:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6189 states to 6189 states and 10044 transitions. [2024-11-19 00:01:30,932 INFO L78 Accepts]: Start accepts. Automaton has 6189 states and 10044 transitions. Word has length 574 [2024-11-19 00:01:30,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:30,933 INFO L471 AbstractCegarLoop]: Abstraction has 6189 states and 10044 transitions. [2024-11-19 00:01:30,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:30,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6189 states and 10044 transitions. [2024-11-19 00:01:30,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-19 00:01:30,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:30,942 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:30,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:01:30,943 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:30,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:30,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1542327962, now seen corresponding path program 1 times [2024-11-19 00:01:30,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215868951] [2024-11-19 00:01:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:31,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:31,296 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215868951] [2024-11-19 00:01:31,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215868951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:31,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:31,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:01:31,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371866227] [2024-11-19 00:01:31,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:31,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:01:31,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:31,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:01:31,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:31,302 INFO L87 Difference]: Start difference. First operand 6189 states and 10044 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:31,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:31,592 INFO L93 Difference]: Finished difference Result 13923 states and 22608 transitions. [2024-11-19 00:01:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:01:31,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 574 [2024-11-19 00:01:31,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:31,630 INFO L225 Difference]: With dead ends: 13923 [2024-11-19 00:01:31,630 INFO L226 Difference]: Without dead ends: 7737 [2024-11-19 00:01:31,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:01:31,648 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 393 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:31,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 1445 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:01:31,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7737 states. [2024-11-19 00:01:31,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7737 to 4643. [2024-11-19 00:01:31,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 3973 states have (on average 1.5625471935565065) internal successors, (6208), 3982 states have internal predecessors, (6208), 657 states have call successors, (657), 12 states have call predecessors, (657), 12 states have return successors, (657), 648 states have call predecessors, (657), 657 states have call successors, (657) [2024-11-19 00:01:31,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 7522 transitions. [2024-11-19 00:01:31,938 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 7522 transitions. Word has length 574 [2024-11-19 00:01:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:31,939 INFO L471 AbstractCegarLoop]: Abstraction has 4643 states and 7522 transitions. [2024-11-19 00:01:31,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 7522 transitions. [2024-11-19 00:01:31,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-19 00:01:31,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:31,947 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:31,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:01:31,948 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:31,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:31,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1056874220, now seen corresponding path program 1 times [2024-11-19 00:01:31,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:31,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203202418] [2024-11-19 00:01:31,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:31,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:32,908 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:32,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:32,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203202418] [2024-11-19 00:01:32,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203202418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:32,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:32,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:01:32,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892762206] [2024-11-19 00:01:32,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:32,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:01:32,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:32,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:01:32,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:01:32,910 INFO L87 Difference]: Start difference. First operand 4643 states and 7522 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:33,925 INFO L93 Difference]: Finished difference Result 19960 states and 32068 transitions. [2024-11-19 00:01:33,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:01:33,926 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 575 [2024-11-19 00:01:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:33,975 INFO L225 Difference]: With dead ends: 19960 [2024-11-19 00:01:33,975 INFO L226 Difference]: Without dead ends: 15320 [2024-11-19 00:01:33,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:01:33,987 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 1365 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1365 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:33,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1365 Valid, 2369 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:01:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15320 states. [2024-11-19 00:01:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15320 to 11630. [2024-11-19 00:01:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11630 states, 10528 states have (on average 1.5856762917933132) internal successors, (16694), 10549 states have internal predecessors, (16694), 1077 states have call successors, (1077), 24 states have call predecessors, (1077), 24 states have return successors, (1077), 1056 states have call predecessors, (1077), 1077 states have call successors, (1077) [2024-11-19 00:01:34,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11630 states to 11630 states and 18848 transitions. [2024-11-19 00:01:34,530 INFO L78 Accepts]: Start accepts. Automaton has 11630 states and 18848 transitions. Word has length 575 [2024-11-19 00:01:34,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:34,531 INFO L471 AbstractCegarLoop]: Abstraction has 11630 states and 18848 transitions. [2024-11-19 00:01:34,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:34,531 INFO L276 IsEmpty]: Start isEmpty. Operand 11630 states and 18848 transitions. [2024-11-19 00:01:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2024-11-19 00:01:34,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:34,547 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:34,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:01:34,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:34,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:34,548 INFO L85 PathProgramCache]: Analyzing trace with hash 436363978, now seen corresponding path program 1 times [2024-11-19 00:01:34,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:34,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981476758] [2024-11-19 00:01:34,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:34,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:35,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:35,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981476758] [2024-11-19 00:01:35,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981476758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:35,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:35,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:01:35,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677583224] [2024-11-19 00:01:35,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:35,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:01:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:35,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:01:35,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:01:35,416 INFO L87 Difference]: Start difference. First operand 11630 states and 18848 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:36,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:36,086 INFO L93 Difference]: Finished difference Result 29731 states and 48161 transitions. [2024-11-19 00:01:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:01:36,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) Word has length 575 [2024-11-19 00:01:36,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:36,128 INFO L225 Difference]: With dead ends: 29731 [2024-11-19 00:01:36,129 INFO L226 Difference]: Without dead ends: 18104 [2024-11-19 00:01:36,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:01:36,157 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 428 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:36,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 1693 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:01:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18104 states. [2024-11-19 00:01:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18104 to 17606. [2024-11-19 00:01:36,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17606 states, 16417 states have (on average 1.6022415788511908) internal successors, (26304), 16438 states have internal predecessors, (26304), 1161 states have call successors, (1161), 27 states have call predecessors, (1161), 27 states have return successors, (1161), 1140 states have call predecessors, (1161), 1161 states have call successors, (1161) [2024-11-19 00:01:36,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17606 states to 17606 states and 28626 transitions. [2024-11-19 00:01:36,836 INFO L78 Accepts]: Start accepts. Automaton has 17606 states and 28626 transitions. Word has length 575 [2024-11-19 00:01:36,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:36,837 INFO L471 AbstractCegarLoop]: Abstraction has 17606 states and 28626 transitions. [2024-11-19 00:01:36,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 1 states have call predecessors, (84), 1 states have call successors, (84) [2024-11-19 00:01:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 17606 states and 28626 transitions. [2024-11-19 00:01:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2024-11-19 00:01:36,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:36,850 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:36,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:01:36,850 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:36,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:36,851 INFO L85 PathProgramCache]: Analyzing trace with hash 2088973083, now seen corresponding path program 1 times [2024-11-19 00:01:36,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:36,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362659226] [2024-11-19 00:01:36,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:36,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:38,551 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:38,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:38,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362659226] [2024-11-19 00:01:38,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362659226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:38,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:38,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:01:38,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117651869] [2024-11-19 00:01:38,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:38,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:01:38,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:38,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:01:38,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:01:38,556 INFO L87 Difference]: Start difference. First operand 17606 states and 28626 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-19 00:01:39,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:39,193 INFO L93 Difference]: Finished difference Result 34905 states and 56743 transitions. [2024-11-19 00:01:39,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:01:39,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 576 [2024-11-19 00:01:39,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:39,233 INFO L225 Difference]: With dead ends: 34905 [2024-11-19 00:01:39,233 INFO L226 Difference]: Without dead ends: 17606 [2024-11-19 00:01:39,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:01:39,269 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 1181 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:39,269 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 567 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:01:39,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17606 states. [2024-11-19 00:01:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17606 to 17606. [2024-11-19 00:01:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17606 states, 16417 states have (on average 1.5983431808491197) internal successors, (26240), 16438 states have internal predecessors, (26240), 1161 states have call successors, (1161), 27 states have call predecessors, (1161), 27 states have return successors, (1161), 1140 states have call predecessors, (1161), 1161 states have call successors, (1161) [2024-11-19 00:01:39,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17606 states to 17606 states and 28562 transitions. [2024-11-19 00:01:39,984 INFO L78 Accepts]: Start accepts. Automaton has 17606 states and 28562 transitions. Word has length 576 [2024-11-19 00:01:39,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:39,985 INFO L471 AbstractCegarLoop]: Abstraction has 17606 states and 28562 transitions. [2024-11-19 00:01:39,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 2 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2024-11-19 00:01:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17606 states and 28562 transitions. [2024-11-19 00:01:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-19 00:01:39,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:39,999 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:39,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:01:40,000 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:40,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:40,001 INFO L85 PathProgramCache]: Analyzing trace with hash -720439224, now seen corresponding path program 1 times [2024-11-19 00:01:40,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:40,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154564184] [2024-11-19 00:01:40,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:40,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:40,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:43,419 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:43,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:43,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154564184] [2024-11-19 00:01:43,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154564184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:43,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:43,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-19 00:01:43,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807123259] [2024-11-19 00:01:43,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:43,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 00:01:43,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:43,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 00:01:43,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-19 00:01:43,422 INFO L87 Difference]: Start difference. First operand 17606 states and 28562 transitions. Second operand has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2024-11-19 00:01:47,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:01:47,570 INFO L93 Difference]: Finished difference Result 69975 states and 111977 transitions. [2024-11-19 00:01:47,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 00:01:47,571 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 577 [2024-11-19 00:01:47,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:01:47,697 INFO L225 Difference]: With dead ends: 69975 [2024-11-19 00:01:47,697 INFO L226 Difference]: Without dead ends: 57228 [2024-11-19 00:01:47,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-19 00:01:47,740 INFO L432 NwaCegarLoop]: 633 mSDtfsCounter, 3292 mSDsluCounter, 3910 mSDsCounter, 0 mSdLazyCounter, 2125 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3292 SdHoareTripleChecker+Valid, 4543 SdHoareTripleChecker+Invalid, 2869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 2125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:01:47,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3292 Valid, 4543 Invalid, 2869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 2125 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 00:01:47,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57228 states. [2024-11-19 00:01:49,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57228 to 52544. [2024-11-19 00:01:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52544 states, 48220 states have (on average 1.5716922438822065) internal successors, (75787), 48337 states have internal predecessors, (75787), 4101 states have call successors, (4101), 222 states have call predecessors, (4101), 222 states have return successors, (4101), 3984 states have call predecessors, (4101), 4101 states have call successors, (4101) [2024-11-19 00:01:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52544 states to 52544 states and 83989 transitions. [2024-11-19 00:01:50,129 INFO L78 Accepts]: Start accepts. Automaton has 52544 states and 83989 transitions. Word has length 577 [2024-11-19 00:01:50,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:01:50,130 INFO L471 AbstractCegarLoop]: Abstraction has 52544 states and 83989 transitions. [2024-11-19 00:01:50,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 3 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2024-11-19 00:01:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 52544 states and 83989 transitions. [2024-11-19 00:01:50,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-19 00:01:50,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:01:50,162 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:01:50,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:01:50,163 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:01:50,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:01:50,164 INFO L85 PathProgramCache]: Analyzing trace with hash 665764170, now seen corresponding path program 1 times [2024-11-19 00:01:50,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:01:50,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261859864] [2024-11-19 00:01:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:01:50,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:01:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:01:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:01:54,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:01:54,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261859864] [2024-11-19 00:01:54,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261859864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:01:54,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:01:54,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-19 00:01:54,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303571635] [2024-11-19 00:01:54,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:01:54,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-19 00:01:54,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:01:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-19 00:01:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2024-11-19 00:01:54,838 INFO L87 Difference]: Start difference. First operand 52544 states and 83989 transitions. Second operand has 20 states, 20 states have (on average 8.0) internal successors, (160), 20 states have internal predecessors, (160), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) [2024-11-19 00:02:06,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:06,963 INFO L93 Difference]: Finished difference Result 283705 states and 453250 transitions. [2024-11-19 00:02:06,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 00:02:06,964 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 8.0) internal successors, (160), 20 states have internal predecessors, (160), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) Word has length 577 [2024-11-19 00:02:06,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:07,563 INFO L225 Difference]: With dead ends: 283705 [2024-11-19 00:02:07,563 INFO L226 Difference]: Without dead ends: 246616 [2024-11-19 00:02:07,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=285, Invalid=905, Unknown=0, NotChecked=0, Total=1190 [2024-11-19 00:02:07,636 INFO L432 NwaCegarLoop]: 708 mSDtfsCounter, 8575 mSDsluCounter, 5618 mSDsCounter, 0 mSdLazyCounter, 4901 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8575 SdHoareTripleChecker+Valid, 6326 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 4901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:07,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8575 Valid, 6326 Invalid, 5597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [696 Valid, 4901 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-19 00:02:07,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246616 states. [2024-11-19 00:02:12,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246616 to 115476. [2024-11-19 00:02:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115476 states, 110023 states have (on average 1.5877134780909445) internal successors, (174685), 110284 states have internal predecessors, (174685), 5061 states have call successors, (5061), 391 states have call predecessors, (5061), 391 states have return successors, (5061), 4800 states have call predecessors, (5061), 5061 states have call successors, (5061) [2024-11-19 00:02:13,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115476 states to 115476 states and 184807 transitions. [2024-11-19 00:02:13,111 INFO L78 Accepts]: Start accepts. Automaton has 115476 states and 184807 transitions. Word has length 577 [2024-11-19 00:02:13,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:02:13,112 INFO L471 AbstractCegarLoop]: Abstraction has 115476 states and 184807 transitions. [2024-11-19 00:02:13,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 8.0) internal successors, (160), 20 states have internal predecessors, (160), 5 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 5 states have call predecessors, (84), 5 states have call successors, (84) [2024-11-19 00:02:13,113 INFO L276 IsEmpty]: Start isEmpty. Operand 115476 states and 184807 transitions. [2024-11-19 00:02:13,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2024-11-19 00:02:13,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:02:13,202 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 84, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:02:13,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:02:13,203 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:02:13,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:02:13,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1936592950, now seen corresponding path program 1 times [2024-11-19 00:02:13,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:02:13,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269461636] [2024-11-19 00:02:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:02:13,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:02:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:02:18,467 INFO L134 CoverageAnalysis]: Checked inductivity of 13944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13944 trivial. 0 not checked. [2024-11-19 00:02:18,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:02:18,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269461636] [2024-11-19 00:02:18,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269461636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:02:18,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:02:18,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-19 00:02:18,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005747927] [2024-11-19 00:02:18,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:02:18,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 00:02:18,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:02:18,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 00:02:18,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:02:18,470 INFO L87 Difference]: Start difference. First operand 115476 states and 184807 transitions. Second operand has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 4 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) [2024-11-19 00:02:29,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:02:29,370 INFO L93 Difference]: Finished difference Result 611736 states and 978825 transitions. [2024-11-19 00:02:29,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:02:29,370 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.428571428571429) internal successors, (160), 14 states have internal predecessors, (160), 4 states have call successors, (84), 1 states have call predecessors, (84), 1 states have return successors, (84), 4 states have call predecessors, (84), 4 states have call successors, (84) Word has length 577 [2024-11-19 00:02:29,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:02:30,478 INFO L225 Difference]: With dead ends: 611736 [2024-11-19 00:02:30,478 INFO L226 Difference]: Without dead ends: 497584 [2024-11-19 00:02:30,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462 [2024-11-19 00:02:30,791 INFO L432 NwaCegarLoop]: 872 mSDtfsCounter, 4997 mSDsluCounter, 5334 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4997 SdHoareTripleChecker+Valid, 6206 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:02:30,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4997 Valid, 6206 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-19 00:02:31,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497584 states.