./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-48.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-500_file-48.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 4a9e9bf709714475d9b4c0874c912dec9c2ff0a074bd43dedf9b533a3abda5f5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:52:34,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:52:34,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:52:34,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:52:34,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:52:34,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:52:34,653 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:52:34,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:52:34,654 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:52:34,656 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:52:34,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:52:34,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:52:34,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:52:34,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:52:34,659 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:52:34,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:52:34,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:52:34,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:52:34,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:52:34,661 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:52:34,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:52:34,665 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:52:34,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:52:34,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:52:34,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:52:34,666 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:52:34,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:52:34,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:52:34,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:52:34,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:52:34,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:52:34,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:52:34,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:52:34,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:52:34,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:52:34,669 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:52:34,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:52:34,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:52:34,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:52:34,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:52:34,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:52:34,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:52:34,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a9e9bf709714475d9b4c0874c912dec9c2ff0a074bd43dedf9b533a3abda5f5 [2024-11-18 19:52:34,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:52:34,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:52:34,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:52:34,977 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:52:34,978 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:52:34,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-48.i [2024-11-18 19:52:36,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:52:36,749 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:52:36,750 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-48.i [2024-11-18 19:52:36,771 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671bd26d6/257f400d4b43413d9a0529c1734ff6c9/FLAG19dd1e956 [2024-11-18 19:52:36,792 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/671bd26d6/257f400d4b43413d9a0529c1734ff6c9 [2024-11-18 19:52:36,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:52:36,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:52:36,801 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:52:36,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:52:36,807 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:52:36,808 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:36" (1/1) ... [2024-11-18 19:52:36,809 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa58aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:36, skipping insertion in model container [2024-11-18 19:52:36,809 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:36" (1/1) ... [2024-11-18 19:52:36,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:52:37,051 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-500_file-48.i[916,929] [2024-11-18 19:52:37,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:52:37,271 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:52:37,285 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-500_file-48.i[916,929] [2024-11-18 19:52:37,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:52:37,391 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:52:37,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37 WrapperNode [2024-11-18 19:52:37,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:52:37,395 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:52:37,395 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:52:37,396 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:52:37,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,505 INFO L138 Inliner]: procedures = 26, calls = 123, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 867 [2024-11-18 19:52:37,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:52:37,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:52:37,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:52:37,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:52:37,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,599 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 19:52:37,599 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,631 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,650 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,670 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:52:37,671 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:52:37,672 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:52:37,672 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:52:37,673 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (1/1) ... [2024-11-18 19:52:37,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:52:37,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:52:37,716 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 19:52:37,723 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 19:52:37,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:52:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:52:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:52:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:52:37,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:52:37,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:52:37,985 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:52:37,987 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:52:39,423 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 19:52:39,424 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:52:39,445 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:52:39,445 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:52:39,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:39 BoogieIcfgContainer [2024-11-18 19:52:39,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:52:39,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:52:39,451 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:52:39,454 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:52:39,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:52:36" (1/3) ... [2024-11-18 19:52:39,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c215dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:39, skipping insertion in model container [2024-11-18 19:52:39,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:37" (2/3) ... [2024-11-18 19:52:39,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c215dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:52:39, skipping insertion in model container [2024-11-18 19:52:39,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:52:39" (3/3) ... [2024-11-18 19:52:39,457 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-48.i [2024-11-18 19:52:39,475 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:52:39,475 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:52:39,563 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:52:39,572 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;@45f3302c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:52:39,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:52:39,580 INFO L276 IsEmpty]: Start isEmpty. Operand has 357 states, 244 states have (on average 1.5778688524590163) internal successors, (385), 245 states have internal predecessors, (385), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:52:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 19:52:39,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:39,630 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:39,631 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:39,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:39,638 INFO L85 PathProgramCache]: Analyzing trace with hash -9869835, now seen corresponding path program 1 times [2024-11-18 19:52:39,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:39,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965666875] [2024-11-18 19:52:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:39,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:40,437 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 218 refuted. 0 times theorem prover too weak. 23762 trivial. 0 not checked. [2024-11-18 19:52:40,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:40,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965666875] [2024-11-18 19:52:40,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965666875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:52:40,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643879429] [2024-11-18 19:52:40,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:40,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:52:40,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:52:40,443 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 19:52:40,444 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 19:52:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:40,897 INFO L255 TraceCheckSpWp]: Trace formula consists of 1588 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:52:40,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:52:41,010 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 23762 trivial. 0 not checked. [2024-11-18 19:52:41,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:52:41,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643879429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:41,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:52:41,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:52:41,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159965269] [2024-11-18 19:52:41,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:41,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:52:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:52:41,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:52:41,056 INFO L87 Difference]: Start difference. First operand has 357 states, 244 states have (on average 1.5778688524590163) internal successors, (385), 245 states have internal predecessors, (385), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:52:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:41,147 INFO L93 Difference]: Finished difference Result 706 states and 1312 transitions. [2024-11-18 19:52:41,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:52:41,151 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) Word has length 704 [2024-11-18 19:52:41,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:41,162 INFO L225 Difference]: With dead ends: 706 [2024-11-18 19:52:41,163 INFO L226 Difference]: Without dead ends: 352 [2024-11-18 19:52:41,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 705 GetRequests, 705 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 19:52:41,180 INFO L432 NwaCegarLoop]: 593 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, 593 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 19:52:41,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:41,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-18 19:52:41,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2024-11-18 19:52:41,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 240 states have (on average 1.5541666666666667) internal successors, (373), 240 states have internal predecessors, (373), 110 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-18 19:52:41,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 593 transitions. [2024-11-18 19:52:41,315 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 593 transitions. Word has length 704 [2024-11-18 19:52:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:41,317 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 593 transitions. [2024-11-18 19:52:41,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 2 states have call successors, (110), 2 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:52:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 593 transitions. [2024-11-18 19:52:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 19:52:41,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:41,335 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:41,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:52:41,539 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 19:52:41,540 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:41,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:41,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1068460259, now seen corresponding path program 1 times [2024-11-18 19:52:41,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:41,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915109590] [2024-11-18 19:52:41,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:41,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:42,236 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:42,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:42,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915109590] [2024-11-18 19:52:42,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915109590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:42,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:42,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:42,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406460614] [2024-11-18 19:52:42,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:42,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:42,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:42,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:42,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:42,245 INFO L87 Difference]: Start difference. First operand 352 states and 593 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:42,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:42,373 INFO L93 Difference]: Finished difference Result 1039 states and 1754 transitions. [2024-11-18 19:52:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:42,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 704 [2024-11-18 19:52:42,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:42,389 INFO L225 Difference]: With dead ends: 1039 [2024-11-18 19:52:42,390 INFO L226 Difference]: Without dead ends: 690 [2024-11-18 19:52:42,393 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 19:52:42,395 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 558 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:42,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1167 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:42,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-18 19:52:42,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 688. [2024-11-18 19:52:42,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 465 states have (on average 1.5483870967741935) internal successors, (720), 465 states have internal predecessors, (720), 220 states have call successors, (220), 2 states have call predecessors, (220), 2 states have return successors, (220), 220 states have call predecessors, (220), 220 states have call successors, (220) [2024-11-18 19:52:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1160 transitions. [2024-11-18 19:52:42,521 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1160 transitions. Word has length 704 [2024-11-18 19:52:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:42,527 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 1160 transitions. [2024-11-18 19:52:42,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:42,528 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1160 transitions. [2024-11-18 19:52:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 19:52:42,545 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:42,546 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:42,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:52:42,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:42,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:42,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1684284775, now seen corresponding path program 1 times [2024-11-18 19:52:42,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:42,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526356130] [2024-11-18 19:52:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:42,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:43,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:43,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526356130] [2024-11-18 19:52:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526356130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:43,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:43,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963791428] [2024-11-18 19:52:43,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:43,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:43,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:43,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:43,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:43,038 INFO L87 Difference]: Start difference. First operand 688 states and 1160 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:43,139 INFO L93 Difference]: Finished difference Result 2002 states and 3371 transitions. [2024-11-18 19:52:43,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:43,141 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 704 [2024-11-18 19:52:43,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:43,157 INFO L225 Difference]: With dead ends: 2002 [2024-11-18 19:52:43,157 INFO L226 Difference]: Without dead ends: 1317 [2024-11-18 19:52:43,161 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 19:52:43,164 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 548 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:43,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1170 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:43,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-11-18 19:52:43,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1307. [2024-11-18 19:52:43,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1307 states, 862 states have (on average 1.5266821345707657) internal successors, (1316), 862 states have internal predecessors, (1316), 440 states have call successors, (440), 4 states have call predecessors, (440), 4 states have return successors, (440), 440 states have call predecessors, (440), 440 states have call successors, (440) [2024-11-18 19:52:43,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1307 states to 1307 states and 2196 transitions. [2024-11-18 19:52:43,424 INFO L78 Accepts]: Start accepts. Automaton has 1307 states and 2196 transitions. Word has length 704 [2024-11-18 19:52:43,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:43,426 INFO L471 AbstractCegarLoop]: Abstraction has 1307 states and 2196 transitions. [2024-11-18 19:52:43,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:43,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1307 states and 2196 transitions. [2024-11-18 19:52:43,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 19:52:43,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:43,433 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:43,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:52:43,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:43,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:43,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1022334619, now seen corresponding path program 1 times [2024-11-18 19:52:43,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:43,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67449255] [2024-11-18 19:52:43,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:43,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:43,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:43,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67449255] [2024-11-18 19:52:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67449255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:44,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:44,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:44,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109012284] [2024-11-18 19:52:44,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:44,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:44,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:44,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:44,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:44,007 INFO L87 Difference]: Start difference. First operand 1307 states and 2196 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:44,165 INFO L93 Difference]: Finished difference Result 3915 states and 6582 transitions. [2024-11-18 19:52:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:44,166 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 704 [2024-11-18 19:52:44,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:44,190 INFO L225 Difference]: With dead ends: 3915 [2024-11-18 19:52:44,190 INFO L226 Difference]: Without dead ends: 2611 [2024-11-18 19:52:44,198 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 19:52:44,202 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 331 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:44,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1180 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2024-11-18 19:52:44,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2609. [2024-11-18 19:52:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 1720 states have (on average 1.5232558139534884) internal successors, (2620), 1720 states have internal predecessors, (2620), 880 states have call successors, (880), 8 states have call predecessors, (880), 8 states have return successors, (880), 880 states have call predecessors, (880), 880 states have call successors, (880) [2024-11-18 19:52:44,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 4380 transitions. [2024-11-18 19:52:44,586 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 4380 transitions. Word has length 704 [2024-11-18 19:52:44,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:44,589 INFO L471 AbstractCegarLoop]: Abstraction has 2609 states and 4380 transitions. [2024-11-18 19:52:44,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:44,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 4380 transitions. [2024-11-18 19:52:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-18 19:52:44,596 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:44,596 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:44,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:52:44,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:44,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:44,598 INFO L85 PathProgramCache]: Analyzing trace with hash 965076317, now seen corresponding path program 1 times [2024-11-18 19:52:44,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:44,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582088537] [2024-11-18 19:52:44,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:44,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:44,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:44,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582088537] [2024-11-18 19:52:44,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582088537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:44,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:44,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:44,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162802941] [2024-11-18 19:52:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:44,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:44,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:44,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:44,951 INFO L87 Difference]: Start difference. First operand 2609 states and 4380 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:45,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:45,113 INFO L93 Difference]: Finished difference Result 5311 states and 8908 transitions. [2024-11-18 19:52:45,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:45,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 704 [2024-11-18 19:52:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:45,138 INFO L225 Difference]: With dead ends: 5311 [2024-11-18 19:52:45,139 INFO L226 Difference]: Without dead ends: 2705 [2024-11-18 19:52:45,151 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 19:52:45,152 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 18 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:45,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 1177 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:45,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2024-11-18 19:52:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2665. [2024-11-18 19:52:45,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 1776 states have (on average 1.5202702702702702) internal successors, (2700), 1776 states have internal predecessors, (2700), 880 states have call successors, (880), 8 states have call predecessors, (880), 8 states have return successors, (880), 880 states have call predecessors, (880), 880 states have call successors, (880) [2024-11-18 19:52:45,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4460 transitions. [2024-11-18 19:52:45,546 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4460 transitions. Word has length 704 [2024-11-18 19:52:45,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:45,547 INFO L471 AbstractCegarLoop]: Abstraction has 2665 states and 4460 transitions. [2024-11-18 19:52:45,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:45,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4460 transitions. [2024-11-18 19:52:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 19:52:45,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:45,554 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:45,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:52:45,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:45,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:45,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1682951868, now seen corresponding path program 1 times [2024-11-18 19:52:45,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:45,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305570903] [2024-11-18 19:52:45,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:45,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:46,384 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:46,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:46,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305570903] [2024-11-18 19:52:46,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305570903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:46,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:46,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:52:46,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857757062] [2024-11-18 19:52:46,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:46,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:52:46,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:46,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:52:46,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:52:46,388 INFO L87 Difference]: Start difference. First operand 2665 states and 4460 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:46,749 INFO L93 Difference]: Finished difference Result 7973 states and 13342 transitions. [2024-11-18 19:52:46,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:52:46,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 705 [2024-11-18 19:52:46,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:46,798 INFO L225 Difference]: With dead ends: 7973 [2024-11-18 19:52:46,799 INFO L226 Difference]: Without dead ends: 5311 [2024-11-18 19:52:46,815 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 19:52:46,817 INFO L432 NwaCegarLoop]: 591 mSDtfsCounter, 338 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1176 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:46,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1176 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:52:46,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5311 states. [2024-11-18 19:52:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5311 to 5309. [2024-11-18 19:52:47,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5309 states, 3532 states have (on average 1.5141562853907136) internal successors, (5348), 3532 states have internal predecessors, (5348), 1760 states have call successors, (1760), 16 states have call predecessors, (1760), 16 states have return successors, (1760), 1760 states have call predecessors, (1760), 1760 states have call successors, (1760) [2024-11-18 19:52:47,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5309 states to 5309 states and 8868 transitions. [2024-11-18 19:52:47,626 INFO L78 Accepts]: Start accepts. Automaton has 5309 states and 8868 transitions. Word has length 705 [2024-11-18 19:52:47,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:47,628 INFO L471 AbstractCegarLoop]: Abstraction has 5309 states and 8868 transitions. [2024-11-18 19:52:47,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:47,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5309 states and 8868 transitions. [2024-11-18 19:52:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 19:52:47,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:47,643 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:47,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:52:47,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:47,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:47,644 INFO L85 PathProgramCache]: Analyzing trace with hash 94603966, now seen corresponding path program 1 times [2024-11-18 19:52:47,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:47,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278251178] [2024-11-18 19:52:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:48,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278251178] [2024-11-18 19:52:48,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278251178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:48,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:48,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:52:48,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628236416] [2024-11-18 19:52:48,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:48,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:52:48,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:48,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:52:48,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:52:48,553 INFO L87 Difference]: Start difference. First operand 5309 states and 8868 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:52:52,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:52,128 INFO L93 Difference]: Finished difference Result 29161 states and 48582 transitions. [2024-11-18 19:52:52,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:52:52,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) Word has length 705 [2024-11-18 19:52:52,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:52,319 INFO L225 Difference]: With dead ends: 29161 [2024-11-18 19:52:52,320 INFO L226 Difference]: Without dead ends: 23855 [2024-11-18 19:52:52,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:52:52,374 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 3302 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3302 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 19:52:52,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3302 Valid, 2416 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 19:52:52,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23855 states. [2024-11-18 19:52:55,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23855 to 23717. [2024-11-18 19:52:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23717 states, 16388 states have (on average 1.5269709543568464) internal successors, (25024), 16452 states have internal predecessors, (25024), 7232 states have call successors, (7232), 96 states have call predecessors, (7232), 96 states have return successors, (7232), 7168 states have call predecessors, (7232), 7232 states have call successors, (7232) [2024-11-18 19:52:55,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23717 states to 23717 states and 39488 transitions. [2024-11-18 19:52:55,971 INFO L78 Accepts]: Start accepts. Automaton has 23717 states and 39488 transitions. Word has length 705 [2024-11-18 19:52:55,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:52:55,972 INFO L471 AbstractCegarLoop]: Abstraction has 23717 states and 39488 transitions. [2024-11-18 19:52:55,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 2 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 2 states have call predecessors, (110), 2 states have call successors, (110) [2024-11-18 19:52:55,974 INFO L276 IsEmpty]: Start isEmpty. Operand 23717 states and 39488 transitions. [2024-11-18 19:52:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 19:52:55,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:52:55,989 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:52:55,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:52:55,989 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:52:55,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:52:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1939971132, now seen corresponding path program 1 times [2024-11-18 19:52:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:52:55,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749899090] [2024-11-18 19:52:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:52:55,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:52:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:52:56,751 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:52:56,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:52:56,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749899090] [2024-11-18 19:52:56,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749899090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:52:56,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:52:56,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:52:56,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685874255] [2024-11-18 19:52:56,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:52:56,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:52:56,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:52:56,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:52:56,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:52:56,755 INFO L87 Difference]: Start difference. First operand 23717 states and 39488 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:52:59,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:52:59,609 INFO L93 Difference]: Finished difference Result 59451 states and 98767 transitions. [2024-11-18 19:52:59,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:52:59,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 705 [2024-11-18 19:52:59,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:52:59,877 INFO L225 Difference]: With dead ends: 59451 [2024-11-18 19:52:59,878 INFO L226 Difference]: Without dead ends: 35737 [2024-11-18 19:53:00,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:53:00,015 INFO L432 NwaCegarLoop]: 704 mSDtfsCounter, 774 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:53:00,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1639 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 19:53:00,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35737 states. [2024-11-18 19:53:03,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35737 to 35685. [2024-11-18 19:53:03,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35685 states, 24484 states have (on average 1.5134781898382617) internal successors, (37056), 24612 states have internal predecessors, (37056), 11040 states have call successors, (11040), 160 states have call predecessors, (11040), 160 states have return successors, (11040), 10912 states have call predecessors, (11040), 11040 states have call successors, (11040) [2024-11-18 19:53:04,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35685 states to 35685 states and 59136 transitions. [2024-11-18 19:53:04,170 INFO L78 Accepts]: Start accepts. Automaton has 35685 states and 59136 transitions. Word has length 705 [2024-11-18 19:53:04,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:53:04,171 INFO L471 AbstractCegarLoop]: Abstraction has 35685 states and 59136 transitions. [2024-11-18 19:53:04,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:53:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 35685 states and 59136 transitions. [2024-11-18 19:53:04,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 19:53:04,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:53:04,191 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:04,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:53:04,191 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:53:04,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:53:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1461509826, now seen corresponding path program 1 times [2024-11-18 19:53:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:53:04,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608205905] [2024-11-18 19:53:04,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:53:04,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:53:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:53:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:53:06,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:53:06,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608205905] [2024-11-18 19:53:06,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608205905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:53:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:53:06,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:53:06,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211180897] [2024-11-18 19:53:06,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:53:06,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:53:06,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:53:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:53:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:53:06,199 INFO L87 Difference]: Start difference. First operand 35685 states and 59136 transitions. Second operand has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:53:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:53:13,712 INFO L93 Difference]: Finished difference Result 174181 states and 289378 transitions. [2024-11-18 19:53:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 19:53:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) Word has length 705 [2024-11-18 19:53:13,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:53:14,815 INFO L225 Difference]: With dead ends: 174181 [2024-11-18 19:53:14,816 INFO L226 Difference]: Without dead ends: 138499 [2024-11-18 19:53:14,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:53:14,983 INFO L432 NwaCegarLoop]: 655 mSDtfsCounter, 2676 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2676 SdHoareTripleChecker+Valid, 3020 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:53:14,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2676 Valid, 3020 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 19:53:15,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138499 states. [2024-11-18 19:53:26,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138499 to 138009. [2024-11-18 19:53:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138009 states, 101688 states have (on average 1.5446463692864447) internal successors, (157072), 102328 states have internal predecessors, (157072), 35600 states have call successors, (35600), 720 states have call predecessors, (35600), 720 states have return successors, (35600), 34960 states have call predecessors, (35600), 35600 states have call successors, (35600) [2024-11-18 19:53:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138009 states to 138009 states and 228272 transitions. [2024-11-18 19:53:28,355 INFO L78 Accepts]: Start accepts. Automaton has 138009 states and 228272 transitions. Word has length 705 [2024-11-18 19:53:28,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:53:28,357 INFO L471 AbstractCegarLoop]: Abstraction has 138009 states and 228272 transitions. [2024-11-18 19:53:28,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) internal successors, (158), 5 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110) [2024-11-18 19:53:28,358 INFO L276 IsEmpty]: Start isEmpty. Operand 138009 states and 228272 transitions. [2024-11-18 19:53:28,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-18 19:53:28,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:53:28,409 INFO L215 NwaCegarLoop]: trace histogram [110, 110, 110, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:53:28,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:53:28,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:53:28,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:53:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash 494479490, now seen corresponding path program 1 times [2024-11-18 19:53:28,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:53:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994729584] [2024-11-18 19:53:28,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:53:28,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:53:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:53:29,066 INFO L134 CoverageAnalysis]: Checked inductivity of 23980 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2024-11-18 19:53:29,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:53:29,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994729584] [2024-11-18 19:53:29,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994729584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:53:29,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:53:29,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:53:29,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408664045] [2024-11-18 19:53:29,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:53:29,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:53:29,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:53:29,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:53:29,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:53:29,070 INFO L87 Difference]: Start difference. First operand 138009 states and 228272 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (110), 1 states have call predecessors, (110), 1 states have return successors, (110), 1 states have call predecessors, (110), 1 states have call successors, (110)