./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.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 31da68eea262c34083df1fad46a5753e80d18ad2f5e3cbbafbfb2efef5c55c33 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:34:05,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:34:05,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:34:05,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:34:05,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:34:05,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:34:05,391 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:34:05,391 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:34:05,392 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:34:05,393 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:34:05,393 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:34:05,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:34:05,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:34:05,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:34:05,394 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:34:05,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:34:05,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:34:05,396 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:34:05,396 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:34:05,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:34:05,397 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:34:05,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:34:05,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:34:05,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:34:05,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:34:05,399 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:34:05,399 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:34:05,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:34:05,400 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:34:05,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:34:05,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:34:05,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:34:05,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:34:05,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:34:05,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:34:05,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:34:05,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:34:05,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:34:05,403 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:34:05,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:34:05,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:34:05,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:34:05,404 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31da68eea262c34083df1fad46a5753e80d18ad2f5e3cbbafbfb2efef5c55c33 [2024-11-18 19:34:05,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:34:05,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:34:05,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:34:05,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:34:05,728 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:34:05,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-11-18 19:34:07,258 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:34:07,522 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:34:07,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-11-18 19:34:07,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14f7a69a0/84e8f7ef5902449ea794682709732bce/FLAG20fa507c0 [2024-11-18 19:34:07,554 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14f7a69a0/84e8f7ef5902449ea794682709732bce [2024-11-18 19:34:07,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:34:07,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:34:07,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:34:07,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:34:07,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:34:07,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:07" (1/1) ... [2024-11-18 19:34:07,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54c8bbdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:07, skipping insertion in model container [2024-11-18 19:34:07,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:34:07" (1/1) ... [2024-11-18 19:34:07,613 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:34:07,847 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i[916,929] [2024-11-18 19:34:08,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:34:08,121 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:34:08,133 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-65.i[916,929] [2024-11-18 19:34:08,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:34:08,233 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:34:08,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08 WrapperNode [2024-11-18 19:34:08,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:34:08,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:34:08,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:34:08,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:34:08,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,333 INFO L138 Inliner]: procedures = 26, calls = 83, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 572 [2024-11-18 19:34:08,337 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:34:08,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:34:08,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:34:08,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:34:08,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,418 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:34:08,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,469 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:34:08,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:34:08,485 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:34:08,485 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:34:08,486 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (1/1) ... [2024-11-18 19:34:08,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:34:08,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:34:08,523 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:34:08,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:34:08,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:34:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:34:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:34:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:34:08,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:34:08,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:34:08,695 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:34:08,697 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:34:09,588 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 19:34:09,588 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:34:09,610 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:34:09,614 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:34:09,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:09 BoogieIcfgContainer [2024-11-18 19:34:09,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:34:09,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:34:09,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:34:09,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:34:09,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:34:07" (1/3) ... [2024-11-18 19:34:09,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f01c179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:34:09, skipping insertion in model container [2024-11-18 19:34:09,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:34:08" (2/3) ... [2024-11-18 19:34:09,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f01c179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:34:09, skipping insertion in model container [2024-11-18 19:34:09,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:34:09" (3/3) ... [2024-11-18 19:34:09,624 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-65.i [2024-11-18 19:34:09,637 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:34:09,637 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:34:09,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:34:09,713 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;@eeaf568, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:34:09,713 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:34:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 232 states, 159 states have (on average 1.5534591194968554) internal successors, (247), 160 states have internal predecessors, (247), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-18 19:34:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2024-11-18 19:34:09,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:09,747 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:09,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:09,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:09,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1232808273, now seen corresponding path program 1 times [2024-11-18 19:34:09,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:09,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565103009] [2024-11-18 19:34:09,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:09,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:10,470 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 138 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2024-11-18 19:34:10,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:10,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565103009] [2024-11-18 19:34:10,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565103009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:34:10,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868037383] [2024-11-18 19:34:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:10,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:34:10,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:34:10,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:34:10,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:34:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:10,817 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:34:10,844 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:34:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 9522 trivial. 0 not checked. [2024-11-18 19:34:10,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:34:10,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868037383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:10,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:34:10,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:34:10,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176180179] [2024-11-18 19:34:10,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:10,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:34:10,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:10,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:34:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:34:10,959 INFO L87 Difference]: Start difference. First operand has 232 states, 159 states have (on average 1.5534591194968554) internal successors, (247), 160 states have internal predecessors, (247), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-18 19:34:11,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:11,031 INFO L93 Difference]: Finished difference Result 455 states and 836 transitions. [2024-11-18 19:34:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:34:11,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) Word has length 454 [2024-11-18 19:34:11,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:11,044 INFO L225 Difference]: With dead ends: 455 [2024-11-18 19:34:11,044 INFO L226 Difference]: Without dead ends: 226 [2024-11-18 19:34:11,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:34:11,055 INFO L432 NwaCegarLoop]: 372 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, 372 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:11,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:11,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-18 19:34:11,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-18 19:34:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 154 states have (on average 1.5064935064935066) internal successors, (232), 154 states have internal predecessors, (232), 70 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-18 19:34:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 372 transitions. [2024-11-18 19:34:11,142 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 372 transitions. Word has length 454 [2024-11-18 19:34:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:11,142 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 372 transitions. [2024-11-18 19:34:11,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 54.5) internal successors, (109), 2 states have internal predecessors, (109), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-18 19:34:11,143 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 372 transitions. [2024-11-18 19:34:11,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2024-11-18 19:34:11,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:11,156 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:11,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 19:34:11,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:34:11,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:11,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:11,362 INFO L85 PathProgramCache]: Analyzing trace with hash -789178051, now seen corresponding path program 1 times [2024-11-18 19:34:11,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:11,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678323622] [2024-11-18 19:34:11,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:11,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:11,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:11,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678323622] [2024-11-18 19:34:11,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678323622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:11,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:11,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:11,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047222677] [2024-11-18 19:34:11,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:11,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:11,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:11,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:11,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:11,846 INFO L87 Difference]: Start difference. First operand 226 states and 372 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:11,965 INFO L93 Difference]: Finished difference Result 587 states and 971 transitions. [2024-11-18 19:34:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:11,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 455 [2024-11-18 19:34:11,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:11,975 INFO L225 Difference]: With dead ends: 587 [2024-11-18 19:34:11,976 INFO L226 Difference]: Without dead ends: 364 [2024-11-18 19:34:11,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:11,981 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 211 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:11,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 806 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:34:11,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-18 19:34:12,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 361. [2024-11-18 19:34:12,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 264 states have (on average 1.5378787878787878) internal successors, (406), 265 states have internal predecessors, (406), 94 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-18 19:34:12,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 594 transitions. [2024-11-18 19:34:12,048 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 594 transitions. Word has length 455 [2024-11-18 19:34:12,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:12,053 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 594 transitions. [2024-11-18 19:34:12,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 594 transitions. [2024-11-18 19:34:12,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-18 19:34:12,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:12,065 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:12,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:34:12,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:12,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:12,066 INFO L85 PathProgramCache]: Analyzing trace with hash -476537748, now seen corresponding path program 1 times [2024-11-18 19:34:12,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:12,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34834497] [2024-11-18 19:34:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:12,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34834497] [2024-11-18 19:34:12,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34834497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:12,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:12,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:12,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91727514] [2024-11-18 19:34:12,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:12,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:12,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:12,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:12,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:12,354 INFO L87 Difference]: Start difference. First operand 361 states and 594 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:12,445 INFO L93 Difference]: Finished difference Result 1058 states and 1742 transitions. [2024-11-18 19:34:12,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:12,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-11-18 19:34:12,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:12,459 INFO L225 Difference]: With dead ends: 1058 [2024-11-18 19:34:12,459 INFO L226 Difference]: Without dead ends: 700 [2024-11-18 19:34:12,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:12,465 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 349 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:12,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 985 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:12,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2024-11-18 19:34:12,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 698. [2024-11-18 19:34:12,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 505 states have (on average 1.5207920792079208) internal successors, (768), 507 states have internal predecessors, (768), 188 states have call successors, (188), 4 states have call predecessors, (188), 4 states have return successors, (188), 186 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-18 19:34:12,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1144 transitions. [2024-11-18 19:34:12,578 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1144 transitions. Word has length 456 [2024-11-18 19:34:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:12,579 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1144 transitions. [2024-11-18 19:34:12,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1144 transitions. [2024-11-18 19:34:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-18 19:34:12,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:12,593 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:12,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:34:12,593 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:12,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1320543250, now seen corresponding path program 1 times [2024-11-18 19:34:12,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:12,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214828255] [2024-11-18 19:34:12,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:12,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:12,886 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:12,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:12,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214828255] [2024-11-18 19:34:12,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214828255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:12,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:12,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:12,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834612600] [2024-11-18 19:34:12,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:12,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:12,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:12,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:12,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:12,893 INFO L87 Difference]: Start difference. First operand 698 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:12,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:12,980 INFO L93 Difference]: Finished difference Result 1419 states and 2319 transitions. [2024-11-18 19:34:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:12,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-11-18 19:34:12,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:12,987 INFO L225 Difference]: With dead ends: 1419 [2024-11-18 19:34:12,987 INFO L226 Difference]: Without dead ends: 724 [2024-11-18 19:34:12,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:12,991 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 200 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:12,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 808 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:12,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-18 19:34:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 564. [2024-11-18 19:34:13,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 419 states have (on average 1.529832935560859) internal successors, (641), 419 states have internal predecessors, (641), 140 states have call successors, (140), 4 states have call predecessors, (140), 4 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-18 19:34:13,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 921 transitions. [2024-11-18 19:34:13,045 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 921 transitions. Word has length 456 [2024-11-18 19:34:13,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:13,047 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 921 transitions. [2024-11-18 19:34:13,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 921 transitions. [2024-11-18 19:34:13,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-18 19:34:13,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:13,055 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:13,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:34:13,056 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:13,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1743245076, now seen corresponding path program 1 times [2024-11-18 19:34:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:13,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708561067] [2024-11-18 19:34:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:13,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:13,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708561067] [2024-11-18 19:34:13,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708561067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:13,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:13,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:34:13,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341221786] [2024-11-18 19:34:13,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:13,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:34:13,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:13,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:34:13,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:34:13,346 INFO L87 Difference]: Start difference. First operand 564 states and 921 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:13,640 INFO L93 Difference]: Finished difference Result 1562 states and 2566 transitions. [2024-11-18 19:34:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:34:13,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-11-18 19:34:13,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:13,650 INFO L225 Difference]: With dead ends: 1562 [2024-11-18 19:34:13,650 INFO L226 Difference]: Without dead ends: 962 [2024-11-18 19:34:13,653 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 [2024-11-18 19:34:13,654 INFO L432 NwaCegarLoop]: 452 mSDtfsCounter, 772 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:13,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 1257 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:34:13,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-18 19:34:13,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 954. [2024-11-18 19:34:13,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 763 states have (on average 1.5386631716906947) internal successors, (1174), 765 states have internal predecessors, (1174), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:34:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1542 transitions. [2024-11-18 19:34:13,737 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1542 transitions. Word has length 456 [2024-11-18 19:34:13,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:13,738 INFO L471 AbstractCegarLoop]: Abstraction has 954 states and 1542 transitions. [2024-11-18 19:34:13,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:13,738 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1542 transitions. [2024-11-18 19:34:13,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-18 19:34:13,746 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:13,747 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:13,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:34:13,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:13,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:13,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1734073770, now seen corresponding path program 1 times [2024-11-18 19:34:13,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:13,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218531630] [2024-11-18 19:34:13,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:13,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:14,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:14,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218531630] [2024-11-18 19:34:14,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218531630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:14,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:14,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:14,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016271640] [2024-11-18 19:34:14,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:14,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:14,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:14,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:14,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:14,049 INFO L87 Difference]: Start difference. First operand 954 states and 1542 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:14,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:14,188 INFO L93 Difference]: Finished difference Result 2856 states and 4620 transitions. [2024-11-18 19:34:14,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:14,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 456 [2024-11-18 19:34:14,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:14,203 INFO L225 Difference]: With dead ends: 2856 [2024-11-18 19:34:14,203 INFO L226 Difference]: Without dead ends: 1905 [2024-11-18 19:34:14,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:14,208 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 355 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:14,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1064 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:14,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1905 states. [2024-11-18 19:34:14,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1905 to 1022. [2024-11-18 19:34:14,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 831 states have (on average 1.5282791817087846) internal successors, (1270), 833 states have internal predecessors, (1270), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:34:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1638 transitions. [2024-11-18 19:34:14,307 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1638 transitions. Word has length 456 [2024-11-18 19:34:14,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:14,308 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1638 transitions. [2024-11-18 19:34:14,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:14,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1638 transitions. [2024-11-18 19:34:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-11-18 19:34:14,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:14,313 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:14,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:34:14,314 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:14,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:14,314 INFO L85 PathProgramCache]: Analyzing trace with hash -655807904, now seen corresponding path program 1 times [2024-11-18 19:34:14,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:14,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830948242] [2024-11-18 19:34:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:14,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:14,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:14,591 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:14,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:14,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830948242] [2024-11-18 19:34:14,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830948242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:14,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:14,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:14,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057860157] [2024-11-18 19:34:14,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:14,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:14,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:14,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:14,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:14,595 INFO L87 Difference]: Start difference. First operand 1022 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:14,663 INFO L93 Difference]: Finished difference Result 1965 states and 3145 transitions. [2024-11-18 19:34:14,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:14,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 457 [2024-11-18 19:34:14,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:14,671 INFO L225 Difference]: With dead ends: 1965 [2024-11-18 19:34:14,671 INFO L226 Difference]: Without dead ends: 946 [2024-11-18 19:34:14,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:14,676 INFO L432 NwaCegarLoop]: 361 mSDtfsCounter, 0 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:14,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 714 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:14,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-18 19:34:14,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2024-11-18 19:34:14,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 755 states have (on average 1.5072847682119206) internal successors, (1138), 757 states have internal predecessors, (1138), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:34:14,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1506 transitions. [2024-11-18 19:34:14,744 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1506 transitions. Word has length 457 [2024-11-18 19:34:14,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:14,745 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1506 transitions. [2024-11-18 19:34:14,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1506 transitions. [2024-11-18 19:34:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-18 19:34:14,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:14,749 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:14,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:34:14,750 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:14,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash 814925935, now seen corresponding path program 1 times [2024-11-18 19:34:14,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:14,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392360591] [2024-11-18 19:34:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:14,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:15,086 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:15,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:15,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392360591] [2024-11-18 19:34:15,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392360591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:15,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:15,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:15,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785051479] [2024-11-18 19:34:15,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:15,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:15,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:15,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:15,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:15,089 INFO L87 Difference]: Start difference. First operand 946 states and 1506 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:15,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:15,145 INFO L93 Difference]: Finished difference Result 1889 states and 3009 transitions. [2024-11-18 19:34:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:15,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 458 [2024-11-18 19:34:15,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:15,152 INFO L225 Difference]: With dead ends: 1889 [2024-11-18 19:34:15,152 INFO L226 Difference]: Without dead ends: 946 [2024-11-18 19:34:15,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:15,157 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 244 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:15,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 355 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:15,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2024-11-18 19:34:15,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 946. [2024-11-18 19:34:15,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 755 states have (on average 1.504635761589404) internal successors, (1136), 757 states have internal predecessors, (1136), 184 states have call successors, (184), 6 states have call predecessors, (184), 6 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-18 19:34:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1504 transitions. [2024-11-18 19:34:15,221 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1504 transitions. Word has length 458 [2024-11-18 19:34:15,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:15,222 INFO L471 AbstractCegarLoop]: Abstraction has 946 states and 1504 transitions. [2024-11-18 19:34:15,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:15,222 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1504 transitions. [2024-11-18 19:34:15,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 19:34:15,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:15,226 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:15,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:34:15,227 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:15,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:15,227 INFO L85 PathProgramCache]: Analyzing trace with hash 802039058, now seen corresponding path program 1 times [2024-11-18 19:34:15,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:15,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325885016] [2024-11-18 19:34:15,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:15,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:16,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:16,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325885016] [2024-11-18 19:34:16,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325885016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:16,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:16,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:34:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096745763] [2024-11-18 19:34:16,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:16,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:34:16,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:16,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:34:16,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:34:16,553 INFO L87 Difference]: Start difference. First operand 946 states and 1504 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:17,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:17,664 INFO L93 Difference]: Finished difference Result 3355 states and 5371 transitions. [2024-11-18 19:34:17,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 19:34:17,665 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 460 [2024-11-18 19:34:17,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:17,680 INFO L225 Difference]: With dead ends: 3355 [2024-11-18 19:34:17,680 INFO L226 Difference]: Without dead ends: 2412 [2024-11-18 19:34:17,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:34:17,686 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 890 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:17,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 2501 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:34:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2024-11-18 19:34:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 1000. [2024-11-18 19:34:17,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 783 states have (on average 1.4865900383141764) internal successors, (1164), 786 states have internal predecessors, (1164), 208 states have call successors, (208), 8 states have call predecessors, (208), 8 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-18 19:34:17,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1580 transitions. [2024-11-18 19:34:17,868 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1580 transitions. Word has length 460 [2024-11-18 19:34:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:17,869 INFO L471 AbstractCegarLoop]: Abstraction has 1000 states and 1580 transitions. [2024-11-18 19:34:17,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:17,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1580 transitions. [2024-11-18 19:34:17,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 19:34:17,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:17,883 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:17,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:34:17,883 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:17,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:17,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1005588653, now seen corresponding path program 1 times [2024-11-18 19:34:17,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:17,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365546960] [2024-11-18 19:34:17,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:17,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:19,397 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365546960] [2024-11-18 19:34:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365546960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:34:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911124728] [2024-11-18 19:34:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:19,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:34:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:19,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:34:19,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:34:19,401 INFO L87 Difference]: Start difference. First operand 1000 states and 1580 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-18 19:34:20,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:20,364 INFO L93 Difference]: Finished difference Result 1987 states and 3116 transitions. [2024-11-18 19:34:20,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:34:20,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 461 [2024-11-18 19:34:20,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:20,374 INFO L225 Difference]: With dead ends: 1987 [2024-11-18 19:34:20,374 INFO L226 Difference]: Without dead ends: 1036 [2024-11-18 19:34:20,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:34:20,378 INFO L432 NwaCegarLoop]: 379 mSDtfsCounter, 447 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:20,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 923 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 461 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 19:34:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-18 19:34:20,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1036. [2024-11-18 19:34:20,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 810 states have (on average 1.4654320987654321) internal successors, (1187), 813 states have internal predecessors, (1187), 208 states have call successors, (208), 17 states have call predecessors, (208), 17 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-18 19:34:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1603 transitions. [2024-11-18 19:34:20,574 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1603 transitions. Word has length 461 [2024-11-18 19:34:20,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:20,575 INFO L471 AbstractCegarLoop]: Abstraction has 1036 states and 1603 transitions. [2024-11-18 19:34:20,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-18 19:34:20,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1603 transitions. [2024-11-18 19:34:20,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-18 19:34:20,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:20,580 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:20,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:34:20,581 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:20,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:20,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1685647023, now seen corresponding path program 1 times [2024-11-18 19:34:20,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238049376] [2024-11-18 19:34:20,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:20,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:21,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:21,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238049376] [2024-11-18 19:34:21,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238049376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:21,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:21,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:34:21,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983932139] [2024-11-18 19:34:21,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:21,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:34:21,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:21,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:34:21,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:34:21,723 INFO L87 Difference]: Start difference. First operand 1036 states and 1603 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:23,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:23,279 INFO L93 Difference]: Finished difference Result 3463 states and 5442 transitions. [2024-11-18 19:34:23,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:34:23,280 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 461 [2024-11-18 19:34:23,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:23,296 INFO L225 Difference]: With dead ends: 3463 [2024-11-18 19:34:23,296 INFO L226 Difference]: Without dead ends: 2480 [2024-11-18 19:34:23,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:34:23,332 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 1076 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 2807 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 281 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:23,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 2807 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [281 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 19:34:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2480 states. [2024-11-18 19:34:23,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2480 to 1028. [2024-11-18 19:34:23,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 802 states have (on average 1.4650872817955112) internal successors, (1175), 805 states have internal predecessors, (1175), 208 states have call successors, (208), 17 states have call predecessors, (208), 17 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-18 19:34:23,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1591 transitions. [2024-11-18 19:34:23,504 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1591 transitions. Word has length 461 [2024-11-18 19:34:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:23,505 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1591 transitions. [2024-11-18 19:34:23,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1591 transitions. [2024-11-18 19:34:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-18 19:34:23,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:23,509 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:23,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:34:23,510 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:23,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 445077320, now seen corresponding path program 1 times [2024-11-18 19:34:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648126955] [2024-11-18 19:34:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:23,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:25,743 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:25,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:25,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648126955] [2024-11-18 19:34:25,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648126955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:25,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:25,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:34:25,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272857898] [2024-11-18 19:34:25,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:25,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:34:25,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:25,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:34:25,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:34:25,747 INFO L87 Difference]: Start difference. First operand 1028 states and 1591 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-18 19:34:28,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:28,095 INFO L93 Difference]: Finished difference Result 3498 states and 5332 transitions. [2024-11-18 19:34:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:34:28,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 464 [2024-11-18 19:34:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:28,110 INFO L225 Difference]: With dead ends: 3498 [2024-11-18 19:34:28,110 INFO L226 Difference]: Without dead ends: 2523 [2024-11-18 19:34:28,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-18 19:34:28,115 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1002 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 809 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1002 SdHoareTripleChecker+Valid, 1096 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 809 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:28,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1002 Valid, 1096 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [809 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 19:34:28,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-18 19:34:28,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2257. [2024-11-18 19:34:28,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 1623 states have (on average 1.3555144793592113) internal successors, (2200), 1634 states have internal predecessors, (2200), 580 states have call successors, (580), 53 states have call predecessors, (580), 53 states have return successors, (580), 569 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-18 19:34:28,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3360 transitions. [2024-11-18 19:34:28,548 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3360 transitions. Word has length 464 [2024-11-18 19:34:28,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:28,549 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3360 transitions. [2024-11-18 19:34:28,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 2 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-18 19:34:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3360 transitions. [2024-11-18 19:34:28,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-11-18 19:34:28,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:28,555 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:28,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:34:28,556 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:28,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:28,556 INFO L85 PathProgramCache]: Analyzing trace with hash 467709574, now seen corresponding path program 1 times [2024-11-18 19:34:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:28,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286001831] [2024-11-18 19:34:28,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:28,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:29,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:29,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286001831] [2024-11-18 19:34:29,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286001831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:29,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:29,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:34:29,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764897436] [2024-11-18 19:34:29,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:29,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:34:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:29,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:34:29,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:34:29,129 INFO L87 Difference]: Start difference. First operand 2257 states and 3360 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:30,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:30,224 INFO L93 Difference]: Finished difference Result 6465 states and 9532 transitions. [2024-11-18 19:34:30,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:34:30,225 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 464 [2024-11-18 19:34:30,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:30,250 INFO L225 Difference]: With dead ends: 6465 [2024-11-18 19:34:30,251 INFO L226 Difference]: Without dead ends: 4306 [2024-11-18 19:34:30,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:34:30,260 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 677 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 1522 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:30,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 1522 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 19:34:30,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-11-18 19:34:30,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 2272. [2024-11-18 19:34:30,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 1638 states have (on average 1.3595848595848596) internal successors, (2227), 1649 states have internal predecessors, (2227), 580 states have call successors, (580), 53 states have call predecessors, (580), 53 states have return successors, (580), 569 states have call predecessors, (580), 580 states have call successors, (580) [2024-11-18 19:34:30,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3387 transitions. [2024-11-18 19:34:30,748 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3387 transitions. Word has length 464 [2024-11-18 19:34:30,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:30,751 INFO L471 AbstractCegarLoop]: Abstraction has 2272 states and 3387 transitions. [2024-11-18 19:34:30,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:30,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3387 transitions. [2024-11-18 19:34:30,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 19:34:30,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:30,756 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:30,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 19:34:30,757 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:30,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:30,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1624911769, now seen corresponding path program 1 times [2024-11-18 19:34:30,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:30,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258008950] [2024-11-18 19:34:30,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:30,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:30,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:30,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:30,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258008950] [2024-11-18 19:34:30,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258008950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:30,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:30,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:34:30,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055238556] [2024-11-18 19:34:30,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:30,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:34:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:34:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:30,912 INFO L87 Difference]: Start difference. First operand 2272 states and 3387 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:31,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:31,483 INFO L93 Difference]: Finished difference Result 4531 states and 6748 transitions. [2024-11-18 19:34:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:34:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-11-18 19:34:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:31,499 INFO L225 Difference]: With dead ends: 4531 [2024-11-18 19:34:31,500 INFO L226 Difference]: Without dead ends: 2357 [2024-11-18 19:34:31,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:34:31,506 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 191 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:31,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 858 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:34:31,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2357 states. [2024-11-18 19:34:31,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2357 to 1821. [2024-11-18 19:34:31,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1331 states have (on average 1.3944402704733283) internal successors, (1856), 1336 states have internal predecessors, (1856), 448 states have call successors, (448), 41 states have call predecessors, (448), 41 states have return successors, (448), 443 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-18 19:34:31,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2752 transitions. [2024-11-18 19:34:31,863 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2752 transitions. Word has length 465 [2024-11-18 19:34:31,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:31,864 INFO L471 AbstractCegarLoop]: Abstraction has 1821 states and 2752 transitions. [2024-11-18 19:34:31,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:31,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2752 transitions. [2024-11-18 19:34:31,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 19:34:31,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:31,873 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:31,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 19:34:31,874 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:31,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:31,875 INFO L85 PathProgramCache]: Analyzing trace with hash 895427299, now seen corresponding path program 1 times [2024-11-18 19:34:31,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:31,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957694386] [2024-11-18 19:34:31,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:31,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:31,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:32,336 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:32,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:32,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957694386] [2024-11-18 19:34:32,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957694386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:32,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:32,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:34:32,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942796173] [2024-11-18 19:34:32,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:32,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:34:32,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:32,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:34:32,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:34:32,342 INFO L87 Difference]: Start difference. First operand 1821 states and 2752 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:33,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:33,420 INFO L93 Difference]: Finished difference Result 4933 states and 7361 transitions. [2024-11-18 19:34:33,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:34:33,421 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-11-18 19:34:33,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:33,444 INFO L225 Difference]: With dead ends: 4933 [2024-11-18 19:34:33,448 INFO L226 Difference]: Without dead ends: 3210 [2024-11-18 19:34:33,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:34:33,457 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 872 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 872 SdHoareTripleChecker+Valid, 1845 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:33,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [872 Valid, 1845 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:34:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-11-18 19:34:33,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 1767. [2024-11-18 19:34:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1277 states have (on average 1.3821456538762724) internal successors, (1765), 1282 states have internal predecessors, (1765), 448 states have call successors, (448), 41 states have call predecessors, (448), 41 states have return successors, (448), 443 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-18 19:34:33,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2661 transitions. [2024-11-18 19:34:33,910 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2661 transitions. Word has length 465 [2024-11-18 19:34:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:33,911 INFO L471 AbstractCegarLoop]: Abstraction has 1767 states and 2661 transitions. [2024-11-18 19:34:33,911 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2661 transitions. [2024-11-18 19:34:33,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 19:34:33,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:33,916 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:33,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 19:34:33,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:33,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:33,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1679304667, now seen corresponding path program 1 times [2024-11-18 19:34:33,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:33,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55943846] [2024-11-18 19:34:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:33,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:34,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:34,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55943846] [2024-11-18 19:34:34,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55943846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:34,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:34,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:34:34,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600241688] [2024-11-18 19:34:34,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:34,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:34:34,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:34,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:34:34,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:34:34,309 INFO L87 Difference]: Start difference. First operand 1767 states and 2661 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:35,251 INFO L93 Difference]: Finished difference Result 5832 states and 8708 transitions. [2024-11-18 19:34:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:34:35,252 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-11-18 19:34:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:35,268 INFO L225 Difference]: With dead ends: 5832 [2024-11-18 19:34:35,268 INFO L226 Difference]: Without dead ends: 4163 [2024-11-18 19:34:35,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:34:35,273 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 449 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:35,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1146 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:34:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4163 states. [2024-11-18 19:34:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4163 to 4147. [2024-11-18 19:34:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4147 states, 3284 states have (on average 1.4123020706455542) internal successors, (4638), 3301 states have internal predecessors, (4638), 766 states have call successors, (766), 96 states have call predecessors, (766), 96 states have return successors, (766), 749 states have call predecessors, (766), 766 states have call successors, (766) [2024-11-18 19:34:35,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4147 states to 4147 states and 6170 transitions. [2024-11-18 19:34:35,841 INFO L78 Accepts]: Start accepts. Automaton has 4147 states and 6170 transitions. Word has length 465 [2024-11-18 19:34:35,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:35,842 INFO L471 AbstractCegarLoop]: Abstraction has 4147 states and 6170 transitions. [2024-11-18 19:34:35,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:35,842 INFO L276 IsEmpty]: Start isEmpty. Operand 4147 states and 6170 transitions. [2024-11-18 19:34:35,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 19:34:35,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:35,850 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:35,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 19:34:35,851 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:35,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:35,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1118604889, now seen corresponding path program 1 times [2024-11-18 19:34:35,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:35,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679518211] [2024-11-18 19:34:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:35,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:36,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 18 proven. 189 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-11-18 19:34:36,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679518211] [2024-11-18 19:34:36,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679518211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:34:36,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021043134] [2024-11-18 19:34:36,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:36,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:34:36,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:34:36,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:34:36,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 19:34:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:36,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-18 19:34:36,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:34:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:37,425 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:34:37,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021043134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:37,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:34:37,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-18 19:34:37,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196873861] [2024-11-18 19:34:37,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:37,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:34:37,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:34:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:34:37,428 INFO L87 Difference]: Start difference. First operand 4147 states and 6170 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:40,378 INFO L93 Difference]: Finished difference Result 18770 states and 27785 transitions. [2024-11-18 19:34:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:34:40,379 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 465 [2024-11-18 19:34:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:40,423 INFO L225 Difference]: With dead ends: 18770 [2024-11-18 19:34:40,423 INFO L226 Difference]: Without dead ends: 14725 [2024-11-18 19:34:40,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-18 19:34:40,437 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 776 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:40,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2122 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-18 19:34:40,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14725 states. [2024-11-18 19:34:42,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14725 to 14653. [2024-11-18 19:34:42,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14653 states, 11524 states have (on average 1.3950885109337037) internal successors, (16077), 11591 states have internal predecessors, (16077), 2764 states have call successors, (2764), 364 states have call predecessors, (2764), 364 states have return successors, (2764), 2697 states have call predecessors, (2764), 2764 states have call successors, (2764) [2024-11-18 19:34:42,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14653 states to 14653 states and 21605 transitions. [2024-11-18 19:34:42,995 INFO L78 Accepts]: Start accepts. Automaton has 14653 states and 21605 transitions. Word has length 465 [2024-11-18 19:34:42,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:42,996 INFO L471 AbstractCegarLoop]: Abstraction has 14653 states and 21605 transitions. [2024-11-18 19:34:42,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:42,997 INFO L276 IsEmpty]: Start isEmpty. Operand 14653 states and 21605 transitions. [2024-11-18 19:34:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-11-18 19:34:43,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:43,015 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:43,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 19:34:43,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-18 19:34:43,217 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:43,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:43,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1248089705, now seen corresponding path program 1 times [2024-11-18 19:34:43,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:43,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579000012] [2024-11-18 19:34:43,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:43,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:43,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 18 proven. 189 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-11-18 19:34:43,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579000012] [2024-11-18 19:34:43,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579000012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:34:43,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154501289] [2024-11-18 19:34:43,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:43,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:34:43,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:34:43,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:34:43,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 19:34:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:44,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 1065 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-18 19:34:44,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:34:44,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 4689 proven. 81 refuted. 0 times theorem prover too weak. 4890 trivial. 0 not checked. [2024-11-18 19:34:44,483 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:34:44,854 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 126 proven. 81 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-11-18 19:34:44,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154501289] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:34:44,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 19:34:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-11-18 19:34:44,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090409114] [2024-11-18 19:34:44,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 19:34:44,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 19:34:44,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:44,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 19:34:44,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:34:44,859 INFO L87 Difference]: Start difference. First operand 14653 states and 21605 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2024-11-18 19:34:47,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:47,715 INFO L93 Difference]: Finished difference Result 29463 states and 42845 transitions. [2024-11-18 19:34:47,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 19:34:47,716 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) Word has length 465 [2024-11-18 19:34:47,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:47,780 INFO L225 Difference]: With dead ends: 29463 [2024-11-18 19:34:47,781 INFO L226 Difference]: Without dead ends: 14783 [2024-11-18 19:34:47,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 950 GetRequests, 929 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=339, Unknown=0, NotChecked=0, Total=506 [2024-11-18 19:34:47,819 INFO L432 NwaCegarLoop]: 315 mSDtfsCounter, 696 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:47,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 998 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:34:47,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14783 states. [2024-11-18 19:34:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14783 to 14217. [2024-11-18 19:34:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14217 states, 11290 states have (on average 1.3655447298494243) internal successors, (15417), 11393 states have internal predecessors, (15417), 2518 states have call successors, (2518), 408 states have call predecessors, (2518), 408 states have return successors, (2518), 2415 states have call predecessors, (2518), 2518 states have call successors, (2518) [2024-11-18 19:34:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14217 states to 14217 states and 20453 transitions. [2024-11-18 19:34:50,645 INFO L78 Accepts]: Start accepts. Automaton has 14217 states and 20453 transitions. Word has length 465 [2024-11-18 19:34:50,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:34:50,646 INFO L471 AbstractCegarLoop]: Abstraction has 14217 states and 20453 transitions. [2024-11-18 19:34:50,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 4 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (162), 4 states have call predecessors, (162), 4 states have call successors, (162) [2024-11-18 19:34:50,647 INFO L276 IsEmpty]: Start isEmpty. Operand 14217 states and 20453 transitions. [2024-11-18 19:34:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-18 19:34:50,660 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:34:50,660 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:34:50,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 19:34:50,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 19:34:50,865 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:34:50,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:34:50,866 INFO L85 PathProgramCache]: Analyzing trace with hash 701113844, now seen corresponding path program 1 times [2024-11-18 19:34:50,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:34:50,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874788586] [2024-11-18 19:34:50,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:34:50,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:34:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:34:51,218 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:34:51,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:34:51,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874788586] [2024-11-18 19:34:51,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874788586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:34:51,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:34:51,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 19:34:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852206857] [2024-11-18 19:34:51,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:34:51,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 19:34:51,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:34:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 19:34:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 19:34:51,222 INFO L87 Difference]: Start difference. First operand 14217 states and 20453 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:34:56,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:34:56,106 INFO L93 Difference]: Finished difference Result 41351 states and 59049 transitions. [2024-11-18 19:34:56,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:34:56,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 466 [2024-11-18 19:34:56,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:34:56,216 INFO L225 Difference]: With dead ends: 41351 [2024-11-18 19:34:56,216 INFO L226 Difference]: Without dead ends: 27244 [2024-11-18 19:34:56,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-18 19:34:56,257 INFO L432 NwaCegarLoop]: 684 mSDtfsCounter, 398 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2053 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:34:56,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2053 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:34:56,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27244 states. [2024-11-18 19:35:00,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27244 to 18113. [2024-11-18 19:35:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18113 states, 14126 states have (on average 1.3074472603709473) internal successors, (18469), 14283 states have internal predecessors, (18469), 3241 states have call successors, (3241), 745 states have call predecessors, (3241), 745 states have return successors, (3241), 3084 states have call predecessors, (3241), 3241 states have call successors, (3241) [2024-11-18 19:35:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18113 states to 18113 states and 24951 transitions. [2024-11-18 19:35:00,274 INFO L78 Accepts]: Start accepts. Automaton has 18113 states and 24951 transitions. Word has length 466 [2024-11-18 19:35:00,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:35:00,275 INFO L471 AbstractCegarLoop]: Abstraction has 18113 states and 24951 transitions. [2024-11-18 19:35:00,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:35:00,276 INFO L276 IsEmpty]: Start isEmpty. Operand 18113 states and 24951 transitions. [2024-11-18 19:35:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-18 19:35:00,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:35:00,291 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:35:00,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 19:35:00,291 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:35:00,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:35:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1123815670, now seen corresponding path program 1 times [2024-11-18 19:35:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:35:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651580430] [2024-11-18 19:35:00,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:35:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:35:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:35:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9660 trivial. 0 not checked. [2024-11-18 19:35:00,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:35:00,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651580430] [2024-11-18 19:35:00,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651580430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:35:00,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:35:00,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:35:00,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770901118] [2024-11-18 19:35:00,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:35:00,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:35:00,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:35:00,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:35:00,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:35:00,572 INFO L87 Difference]: Start difference. First operand 18113 states and 24951 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:35:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:35:03,957 INFO L93 Difference]: Finished difference Result 41832 states and 58205 transitions. [2024-11-18 19:35:03,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:35:03,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 466 [2024-11-18 19:35:03,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:35:04,041 INFO L225 Difference]: With dead ends: 41832 [2024-11-18 19:35:04,041 INFO L226 Difference]: Without dead ends: 23829 [2024-11-18 19:35:04,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:35:04,086 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 298 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:35:04,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1209 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:35:04,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23829 states. [2024-11-18 19:35:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23829 to 22409. [2024-11-18 19:35:08,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22409 states, 18490 states have (on average 1.3694429421308816) internal successors, (25321), 18646 states have internal predecessors, (25321), 3184 states have call successors, (3184), 734 states have call predecessors, (3184), 734 states have return successors, (3184), 3028 states have call predecessors, (3184), 3184 states have call successors, (3184) [2024-11-18 19:35:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22409 states to 22409 states and 31689 transitions. [2024-11-18 19:35:08,063 INFO L78 Accepts]: Start accepts. Automaton has 22409 states and 31689 transitions. Word has length 466 [2024-11-18 19:35:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:35:08,064 INFO L471 AbstractCegarLoop]: Abstraction has 22409 states and 31689 transitions. [2024-11-18 19:35:08,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (70), 1 states have call predecessors, (70), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2024-11-18 19:35:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 22409 states and 31689 transitions. [2024-11-18 19:35:08,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-18 19:35:08,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:35:08,076 INFO L215 NwaCegarLoop]: trace histogram [70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:35:08,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 19:35:08,076 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:35:08,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:35:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash 682245303, now seen corresponding path program 1 times [2024-11-18 19:35:08,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:35:08,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063516139] [2024-11-18 19:35:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:35:08,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:35:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:35:09,544 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 195 proven. 12 refuted. 0 times theorem prover too weak. 9453 trivial. 0 not checked. [2024-11-18 19:35:09,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:35:09,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063516139] [2024-11-18 19:35:09,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063516139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:35:09,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082419196] [2024-11-18 19:35:09,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:35:09,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:35:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:35:09,547 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:35:09,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 19:35:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:35:09,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 19:35:09,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:35:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 4157 proven. 39 refuted. 0 times theorem prover too weak. 5464 trivial. 0 not checked. [2024-11-18 19:35:11,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 19:35:15,533 INFO L134 CoverageAnalysis]: Checked inductivity of 9660 backedges. 369 proven. 42 refuted. 0 times theorem prover too weak. 9249 trivial. 0 not checked. [2024-11-18 19:35:15,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082419196] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 19:35:15,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 19:35:15,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 26 [2024-11-18 19:35:15,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4457504] [2024-11-18 19:35:15,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 19:35:15,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-18 19:35:15,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:35:15,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-18 19:35:15,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2024-11-18 19:35:15,540 INFO L87 Difference]: Start difference. First operand 22409 states and 31689 transitions. Second operand has 26 states, 26 states have (on average 10.807692307692308) internal successors, (281), 26 states have internal predecessors, (281), 10 states have call successors, (158), 5 states have call predecessors, (158), 10 states have return successors, (158), 10 states have call predecessors, (158), 10 states have call successors, (158)