./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-34.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 31a0f34f1361b8503e92d18ec6b5d54f94798b9bc08facd153f06fdbee00fcdf --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:43:08,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:43:09,075 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:43:09,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:43:09,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:43:09,117 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:43:09,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:43:09,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:43:09,119 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:43:09,122 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:43:09,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:43:09,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:43:09,123 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:43:09,123 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:43:09,124 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:43:09,124 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:43:09,125 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:43:09,125 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:43:09,125 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:43:09,125 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:43:09,126 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:43:09,126 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:43:09,126 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:43:09,127 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:43:09,127 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:43:09,127 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:43:09,128 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:43:09,128 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:43:09,128 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:43:09,128 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:43:09,128 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:43:09,128 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:43:09,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:43:09,129 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:43:09,129 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:43:09,129 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:43:09,129 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:43:09,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:43:09,130 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:43:09,130 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:43:09,130 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:43:09,130 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:43:09,130 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31a0f34f1361b8503e92d18ec6b5d54f94798b9bc08facd153f06fdbee00fcdf [2024-11-22 07:43:09,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:43:09,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:43:09,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:43:09,420 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:43:09,421 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:43:09,422 INFO L431 ainManager$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-34.i [2024-11-22 07:43:10,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:43:11,004 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:43:11,005 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-34.i [2024-11-22 07:43:11,022 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a411509/67c130699917445fb9234c5951e4b588/FLAGd4e395bb0 [2024-11-22 07:43:11,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4a411509/67c130699917445fb9234c5951e4b588 [2024-11-22 07:43:11,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:43:11,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:43:11,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:43:11,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:43:11,047 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:43:11,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56861c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11, skipping insertion in model container [2024-11-22 07:43:11,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:43:11,280 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-34.i[916,929] [2024-11-22 07:43:11,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:43:11,474 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:43:11,495 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-34.i[916,929] [2024-11-22 07:43:11,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:43:11,590 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:43:11,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11 WrapperNode [2024-11-22 07:43:11,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:43:11,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:43:11,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:43:11,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:43:11,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,727 INFO L138 Inliner]: procedures = 26, calls = 122, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 988 [2024-11-22 07:43:11,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:43:11,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:43:11,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:43:11,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:43:11,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,790 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]. [2024-11-22 07:43:11,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:43:11,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:43:11,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:43:11,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:43:11,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (1/1) ... [2024-11-22 07:43:11,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:43:11,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:43:11,926 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) [2024-11-22 07:43:11,937 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 [2024-11-22 07:43:11,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:43:11,988 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:43:11,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:43:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:43:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:43:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:43:12,144 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:43:12,147 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:43:13,723 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2024-11-22 07:43:13,723 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:43:13,752 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:43:13,753 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:43:13,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:43:13 BoogieIcfgContainer [2024-11-22 07:43:13,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:43:13,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:43:13,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:43:13,759 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:43:13,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:43:11" (1/3) ... [2024-11-22 07:43:13,760 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92b84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:43:13, skipping insertion in model container [2024-11-22 07:43:13,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:43:11" (2/3) ... [2024-11-22 07:43:13,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c92b84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:43:13, skipping insertion in model container [2024-11-22 07:43:13,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:43:13" (3/3) ... [2024-11-22 07:43:13,762 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-34.i [2024-11-22 07:43:13,779 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:43:13,780 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:43:13,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:43:13,885 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;@1ebf856c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:43:13,886 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:43:13,895 INFO L276 IsEmpty]: Start isEmpty. Operand has 411 states, 299 states have (on average 1.6187290969899666) internal successors, (484), 300 states have internal predecessors, (484), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-22 07:43:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:13,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:13,949 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:13,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:13,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:13,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1621375195, now seen corresponding path program 1 times [2024-11-22 07:43:13,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:13,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209222395] [2024-11-22 07:43:13,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:13,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:14,727 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-22 07:43:14,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:14,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209222395] [2024-11-22 07:43:14,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209222395] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:43:14,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133800215] [2024-11-22 07:43:14,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:14,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:43:14,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:43:14,734 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) [2024-11-22 07:43:14,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:43:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:15,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 1613 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:43:15,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:43:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 23328 trivial. 0 not checked. [2024-11-22 07:43:15,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:43:15,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133800215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:15,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:43:15,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:43:15,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088225405] [2024-11-22 07:43:15,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:15,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:43:15,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:15,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:43:15,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:43:15,248 INFO L87 Difference]: Start difference. First operand has 411 states, 299 states have (on average 1.6187290969899666) internal successors, (484), 300 states have internal predecessors, (484), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-22 07:43:15,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:15,326 INFO L93 Difference]: Finished difference Result 815 states and 1507 transitions. [2024-11-22 07:43:15,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:43:15,328 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) Word has length 705 [2024-11-22 07:43:15,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:15,344 INFO L225 Difference]: With dead ends: 815 [2024-11-22 07:43:15,345 INFO L226 Difference]: Without dead ends: 407 [2024-11-22 07:43:15,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 706 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:43:15,360 INFO L432 NwaCegarLoop]: 694 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, 694 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 [2024-11-22 07:43:15,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:15,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-22 07:43:15,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2024-11-22 07:43:15,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 296 states have (on average 1.6081081081081081) internal successors, (476), 296 states have internal predecessors, (476), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-22 07:43:15,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 694 transitions. [2024-11-22 07:43:15,499 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 694 transitions. Word has length 705 [2024-11-22 07:43:15,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:15,502 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 694 transitions. [2024-11-22 07:43:15,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 2 states have call successors, (109), 2 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 2 states have call successors, (109) [2024-11-22 07:43:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 694 transitions. [2024-11-22 07:43:15,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:15,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:15,543 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:15,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 07:43:15,743 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 [2024-11-22 07:43:15,745 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:15,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:15,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1873363917, now seen corresponding path program 1 times [2024-11-22 07:43:15,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:15,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322546059] [2024-11-22 07:43:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:15,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:16,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:16,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322546059] [2024-11-22 07:43:16,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322546059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:16,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:16,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:16,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253379880] [2024-11-22 07:43:16,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:16,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:16,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:16,270 INFO L87 Difference]: Start difference. First operand 407 states and 694 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:16,373 INFO L93 Difference]: Finished difference Result 1065 states and 1827 transitions. [2024-11-22 07:43:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:16,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:16,381 INFO L225 Difference]: With dead ends: 1065 [2024-11-22 07:43:16,382 INFO L226 Difference]: Without dead ends: 661 [2024-11-22 07:43:16,383 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 [2024-11-22 07:43:16,384 INFO L432 NwaCegarLoop]: 748 mSDtfsCounter, 432 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:16,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1423 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:16,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-11-22 07:43:16,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 658. [2024-11-22 07:43:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 531 states have (on average 1.6572504708097928) internal successors, (880), 532 states have internal predecessors, (880), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-22 07:43:16,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1128 transitions. [2024-11-22 07:43:16,438 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1128 transitions. Word has length 705 [2024-11-22 07:43:16,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:16,468 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 1128 transitions. [2024-11-22 07:43:16,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:16,469 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1128 transitions. [2024-11-22 07:43:16,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:16,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:16,482 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:16,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:43:16,483 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:16,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 705228047, now seen corresponding path program 1 times [2024-11-22 07:43:16,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:16,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730750932] [2024-11-22 07:43:16,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:16,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:16,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730750932] [2024-11-22 07:43:16,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730750932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:16,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:16,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:16,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732947392] [2024-11-22 07:43:16,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:16,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:16,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:16,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:16,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:16,860 INFO L87 Difference]: Start difference. First operand 658 states and 1128 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:16,911 INFO L93 Difference]: Finished difference Result 1315 states and 2257 transitions. [2024-11-22 07:43:16,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:16,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:16,918 INFO L225 Difference]: With dead ends: 1315 [2024-11-22 07:43:16,919 INFO L226 Difference]: Without dead ends: 660 [2024-11-22 07:43:16,920 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 [2024-11-22 07:43:16,921 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 0 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1379 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:16,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1379 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:16,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-22 07:43:16,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2024-11-22 07:43:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 533 states have (on average 1.6547842401500938) internal successors, (882), 534 states have internal predecessors, (882), 124 states have call successors, (124), 2 states have call predecessors, (124), 2 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-22 07:43:16,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 1130 transitions. [2024-11-22 07:43:16,974 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 1130 transitions. Word has length 705 [2024-11-22 07:43:16,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:16,975 INFO L471 AbstractCegarLoop]: Abstraction has 660 states and 1130 transitions. [2024-11-22 07:43:16,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:16,976 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 1130 transitions. [2024-11-22 07:43:16,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:16,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:16,984 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:16,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:43:16,985 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:16,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:16,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1294641495, now seen corresponding path program 1 times [2024-11-22 07:43:16,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:16,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95311460] [2024-11-22 07:43:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:16,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:17,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:17,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:17,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95311460] [2024-11-22 07:43:17,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95311460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:17,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:17,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:17,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926056832] [2024-11-22 07:43:17,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:17,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:17,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:17,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:17,388 INFO L87 Difference]: Start difference. First operand 660 states and 1130 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:17,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:17,464 INFO L93 Difference]: Finished difference Result 1960 states and 3359 transitions. [2024-11-22 07:43:17,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:17,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:17,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:17,477 INFO L225 Difference]: With dead ends: 1960 [2024-11-22 07:43:17,477 INFO L226 Difference]: Without dead ends: 1303 [2024-11-22 07:43:17,480 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 [2024-11-22 07:43:17,482 INFO L432 NwaCegarLoop]: 1100 mSDtfsCounter, 649 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:17,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 1767 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:17,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2024-11-22 07:43:17,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 1301. [2024-11-22 07:43:17,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 1048 states have (on average 1.6459923664122138) internal successors, (1725), 1050 states have internal predecessors, (1725), 248 states have call successors, (248), 4 states have call predecessors, (248), 4 states have return successors, (248), 246 states have call predecessors, (248), 248 states have call successors, (248) [2024-11-22 07:43:17,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 2221 transitions. [2024-11-22 07:43:17,622 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 2221 transitions. Word has length 705 [2024-11-22 07:43:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:17,624 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 2221 transitions. [2024-11-22 07:43:17,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 2221 transitions. [2024-11-22 07:43:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:17,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:17,639 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:17,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:43:17,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:17,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1433567851, now seen corresponding path program 1 times [2024-11-22 07:43:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:17,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44621646] [2024-11-22 07:43:17,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:17,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:18,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:18,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44621646] [2024-11-22 07:43:18,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44621646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:18,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:18,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310824365] [2024-11-22 07:43:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:18,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:18,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:18,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:18,158 INFO L87 Difference]: Start difference. First operand 1301 states and 2221 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:18,359 INFO L93 Difference]: Finished difference Result 3475 states and 5919 transitions. [2024-11-22 07:43:18,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:18,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:18,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:18,374 INFO L225 Difference]: With dead ends: 3475 [2024-11-22 07:43:18,375 INFO L226 Difference]: Without dead ends: 2177 [2024-11-22 07:43:18,381 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 [2024-11-22 07:43:18,382 INFO L432 NwaCegarLoop]: 664 mSDtfsCounter, 458 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1319 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:18,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1319 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 07:43:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2024-11-22 07:43:18,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 2155. [2024-11-22 07:43:18,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2155 states, 1665 states have (on average 1.6216216216216217) internal successors, (2700), 1668 states have internal predecessors, (2700), 481 states have call successors, (481), 8 states have call predecessors, (481), 8 states have return successors, (481), 478 states have call predecessors, (481), 481 states have call successors, (481) [2024-11-22 07:43:18,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2155 states to 2155 states and 3662 transitions. [2024-11-22 07:43:18,610 INFO L78 Accepts]: Start accepts. Automaton has 2155 states and 3662 transitions. Word has length 705 [2024-11-22 07:43:18,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:18,611 INFO L471 AbstractCegarLoop]: Abstraction has 2155 states and 3662 transitions. [2024-11-22 07:43:18,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2155 states and 3662 transitions. [2024-11-22 07:43:18,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:18,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:18,619 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:18,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:43:18,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:18,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:18,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1185421357, now seen corresponding path program 1 times [2024-11-22 07:43:18,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:18,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061154183] [2024-11-22 07:43:18,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:18,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:18,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:18,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061154183] [2024-11-22 07:43:18,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061154183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:18,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:18,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:18,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648539257] [2024-11-22 07:43:18,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:18,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:18,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:18,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:18,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:18,945 INFO L87 Difference]: Start difference. First operand 2155 states and 3662 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:19,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:19,045 INFO L93 Difference]: Finished difference Result 4344 states and 7381 transitions. [2024-11-22 07:43:19,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:19,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:19,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:19,057 INFO L225 Difference]: With dead ends: 4344 [2024-11-22 07:43:19,057 INFO L226 Difference]: Without dead ends: 2215 [2024-11-22 07:43:19,063 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 [2024-11-22 07:43:19,066 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 626 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:19,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 1569 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:19,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2024-11-22 07:43:19,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 2213. [2024-11-22 07:43:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1723 states have (on average 1.61288450377249) internal successors, (2779), 1726 states have internal predecessors, (2779), 481 states have call successors, (481), 8 states have call predecessors, (481), 8 states have return successors, (481), 478 states have call predecessors, (481), 481 states have call successors, (481) [2024-11-22 07:43:19,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3741 transitions. [2024-11-22 07:43:19,202 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3741 transitions. Word has length 705 [2024-11-22 07:43:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:19,203 INFO L471 AbstractCegarLoop]: Abstraction has 2213 states and 3741 transitions. [2024-11-22 07:43:19,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3741 transitions. [2024-11-22 07:43:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:19,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:19,209 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:19,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:43:19,209 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:19,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash -590435055, now seen corresponding path program 1 times [2024-11-22 07:43:19,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:19,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884615367] [2024-11-22 07:43:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:19,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:19,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:19,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884615367] [2024-11-22 07:43:19,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884615367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:19,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:19,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:19,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669069159] [2024-11-22 07:43:19,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:19,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:19,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:19,490 INFO L87 Difference]: Start difference. First operand 2213 states and 3741 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:19,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:19,610 INFO L93 Difference]: Finished difference Result 5629 states and 9506 transitions. [2024-11-22 07:43:19,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:19,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:19,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:19,627 INFO L225 Difference]: With dead ends: 5629 [2024-11-22 07:43:19,628 INFO L226 Difference]: Without dead ends: 3442 [2024-11-22 07:43:19,635 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 [2024-11-22 07:43:19,636 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 331 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 1375 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:19,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 1375 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-11-22 07:43:19,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3436. [2024-11-22 07:43:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3436 states, 2756 states have (on average 1.6215529753265603) internal successors, (4469), 2765 states have internal predecessors, (4469), 663 states have call successors, (663), 16 states have call predecessors, (663), 16 states have return successors, (663), 654 states have call predecessors, (663), 663 states have call successors, (663) [2024-11-22 07:43:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3436 states to 3436 states and 5795 transitions. [2024-11-22 07:43:19,898 INFO L78 Accepts]: Start accepts. Automaton has 3436 states and 5795 transitions. Word has length 705 [2024-11-22 07:43:19,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:19,899 INFO L471 AbstractCegarLoop]: Abstraction has 3436 states and 5795 transitions. [2024-11-22 07:43:19,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3436 states and 5795 transitions. [2024-11-22 07:43:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:19,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:19,906 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:19,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:43:19,906 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:19,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:19,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1899093907, now seen corresponding path program 1 times [2024-11-22 07:43:19,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:19,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121382377] [2024-11-22 07:43:19,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:19,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:20,453 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:20,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:20,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121382377] [2024-11-22 07:43:20,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121382377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:20,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:20,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:43:20,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303358346] [2024-11-22 07:43:20,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:20,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:43:20,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:20,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:43:20,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:43:20,456 INFO L87 Difference]: Start difference. First operand 3436 states and 5795 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:20,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:20,925 INFO L93 Difference]: Finished difference Result 9850 states and 16549 transitions. [2024-11-22 07:43:20,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:43:20,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:20,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:20,964 INFO L225 Difference]: With dead ends: 9850 [2024-11-22 07:43:20,965 INFO L226 Difference]: Without dead ends: 6440 [2024-11-22 07:43:20,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:43:20,981 INFO L432 NwaCegarLoop]: 869 mSDtfsCounter, 891 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 2188 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:20,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 2188 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:43:20,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6440 states. [2024-11-22 07:43:21,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6440 to 6402. [2024-11-22 07:43:21,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6402 states, 5076 states have (on average 1.605397951142632) internal successors, (8149), 5095 states have internal predecessors, (8149), 1285 states have call successors, (1285), 40 states have call predecessors, (1285), 40 states have return successors, (1285), 1266 states have call predecessors, (1285), 1285 states have call successors, (1285) [2024-11-22 07:43:21,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6402 states to 6402 states and 10719 transitions. [2024-11-22 07:43:21,484 INFO L78 Accepts]: Start accepts. Automaton has 6402 states and 10719 transitions. Word has length 705 [2024-11-22 07:43:21,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:21,485 INFO L471 AbstractCegarLoop]: Abstraction has 6402 states and 10719 transitions. [2024-11-22 07:43:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 6402 states and 10719 transitions. [2024-11-22 07:43:21,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:21,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:21,495 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:21,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:43:21,495 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:21,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:21,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1167126481, now seen corresponding path program 1 times [2024-11-22 07:43:21,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:21,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490344278] [2024-11-22 07:43:21,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:21,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:22,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:22,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490344278] [2024-11-22 07:43:22,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490344278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:22,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:22,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:43:22,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708133603] [2024-11-22 07:43:22,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:22,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:43:22,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:43:22,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:43:22,140 INFO L87 Difference]: Start difference. First operand 6402 states and 10719 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:22,545 INFO L93 Difference]: Finished difference Result 19154 states and 32075 transitions. [2024-11-22 07:43:22,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:43:22,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:22,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:22,620 INFO L225 Difference]: With dead ends: 19154 [2024-11-22 07:43:22,620 INFO L226 Difference]: Without dead ends: 12778 [2024-11-22 07:43:22,636 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 [2024-11-22 07:43:22,638 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 443 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:22,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1381 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:43:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12778 states. [2024-11-22 07:43:23,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12778 to 12776. [2024-11-22 07:43:23,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12776 states, 10140 states have (on average 1.6025641025641026) internal successors, (16250), 10177 states have internal predecessors, (16250), 2555 states have call successors, (2555), 80 states have call predecessors, (2555), 80 states have return successors, (2555), 2518 states have call predecessors, (2555), 2555 states have call successors, (2555) [2024-11-22 07:43:23,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12776 states to 12776 states and 21360 transitions. [2024-11-22 07:43:23,554 INFO L78 Accepts]: Start accepts. Automaton has 12776 states and 21360 transitions. Word has length 705 [2024-11-22 07:43:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:23,556 INFO L471 AbstractCegarLoop]: Abstraction has 12776 states and 21360 transitions. [2024-11-22 07:43:23,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 12776 states and 21360 transitions. [2024-11-22 07:43:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2024-11-22 07:43:23,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:23,576 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:23,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:43:23,577 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:23,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:23,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1385981199, now seen corresponding path program 1 times [2024-11-22 07:43:23,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:23,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42587372] [2024-11-22 07:43:23,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:23,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:23,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:24,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42587372] [2024-11-22 07:43:24,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42587372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:24,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:24,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:43:24,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310474228] [2024-11-22 07:43:24,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:24,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:43:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:24,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:43:24,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:43:24,253 INFO L87 Difference]: Start difference. First operand 12776 states and 21360 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:25,753 INFO L93 Difference]: Finished difference Result 39622 states and 66111 transitions. [2024-11-22 07:43:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:43:25,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 705 [2024-11-22 07:43:25,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:25,895 INFO L225 Difference]: With dead ends: 39622 [2024-11-22 07:43:25,895 INFO L226 Difference]: Without dead ends: 26872 [2024-11-22 07:43:25,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:43:25,949 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 800 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:25,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 2100 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:43:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26872 states. [2024-11-22 07:43:27,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26872 to 25620. [2024-11-22 07:43:27,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25620 states, 20364 states have (on average 1.5977214692594774) internal successors, (32536), 20437 states have internal predecessors, (32536), 5095 states have call successors, (5095), 160 states have call predecessors, (5095), 160 states have return successors, (5095), 5022 states have call predecessors, (5095), 5095 states have call successors, (5095) [2024-11-22 07:43:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25620 states to 25620 states and 42726 transitions. [2024-11-22 07:43:28,019 INFO L78 Accepts]: Start accepts. Automaton has 25620 states and 42726 transitions. Word has length 705 [2024-11-22 07:43:28,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:28,020 INFO L471 AbstractCegarLoop]: Abstraction has 25620 states and 42726 transitions. [2024-11-22 07:43:28,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:28,021 INFO L276 IsEmpty]: Start isEmpty. Operand 25620 states and 42726 transitions. [2024-11-22 07:43:28,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-22 07:43:28,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:28,037 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:28,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:43:28,038 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:28,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:28,040 INFO L85 PathProgramCache]: Analyzing trace with hash -844511678, now seen corresponding path program 1 times [2024-11-22 07:43:28,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:28,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107739078] [2024-11-22 07:43:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:28,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:28,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:28,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107739078] [2024-11-22 07:43:28,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107739078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:28,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:28,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:43:28,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435520574] [2024-11-22 07:43:28,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:28,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:43:28,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:28,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:43:28,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:43:28,667 INFO L87 Difference]: Start difference. First operand 25620 states and 42726 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:31,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:31,620 INFO L93 Difference]: Finished difference Result 76520 states and 127520 transitions. [2024-11-22 07:43:31,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:43:31,621 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 706 [2024-11-22 07:43:31,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:31,856 INFO L225 Difference]: With dead ends: 76520 [2024-11-22 07:43:31,857 INFO L226 Difference]: Without dead ends: 50926 [2024-11-22 07:43:31,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:43:31,936 INFO L432 NwaCegarLoop]: 1335 mSDtfsCounter, 1084 mSDsluCounter, 1383 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:31,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 2718 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-22 07:43:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50926 states. [2024-11-22 07:43:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50926 to 25897. [2024-11-22 07:43:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25897 states, 20601 states have (on average 1.5912819766030775) internal successors, (32782), 20675 states have internal predecessors, (32782), 5133 states have call successors, (5133), 162 states have call predecessors, (5133), 162 states have return successors, (5133), 5059 states have call predecessors, (5133), 5133 states have call successors, (5133) [2024-11-22 07:43:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25897 states to 25897 states and 43048 transitions. [2024-11-22 07:43:34,719 INFO L78 Accepts]: Start accepts. Automaton has 25897 states and 43048 transitions. Word has length 706 [2024-11-22 07:43:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:34,720 INFO L471 AbstractCegarLoop]: Abstraction has 25897 states and 43048 transitions. [2024-11-22 07:43:34,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:34,720 INFO L276 IsEmpty]: Start isEmpty. Operand 25897 states and 43048 transitions. [2024-11-22 07:43:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2024-11-22 07:43:34,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:34,736 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:34,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:43:34,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:34,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:34,737 INFO L85 PathProgramCache]: Analyzing trace with hash -320368873, now seen corresponding path program 1 times [2024-11-22 07:43:34,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:34,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085231512] [2024-11-22 07:43:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:34,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:35,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:35,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085231512] [2024-11-22 07:43:35,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085231512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:35,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:35,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:43:35,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232069971] [2024-11-22 07:43:35,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:35,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:43:35,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:35,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:43:35,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:43:35,548 INFO L87 Difference]: Start difference. First operand 25897 states and 43048 transitions. Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:43:40,876 INFO L93 Difference]: Finished difference Result 127494 states and 211664 transitions. [2024-11-22 07:43:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 07:43:40,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) Word has length 707 [2024-11-22 07:43:40,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:43:41,311 INFO L225 Difference]: With dead ends: 127494 [2024-11-22 07:43:41,311 INFO L226 Difference]: Without dead ends: 101623 [2024-11-22 07:43:41,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:43:41,419 INFO L432 NwaCegarLoop]: 1328 mSDtfsCounter, 2173 mSDsluCounter, 1669 mSDsCounter, 0 mSdLazyCounter, 838 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 2997 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:43:41,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 2997 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 838 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-22 07:43:41,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101623 states. [2024-11-22 07:43:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101623 to 97762. [2024-11-22 07:43:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97762 states, 79074 states have (on average 1.595164023572856) internal successors, (126136), 79413 states have internal predecessors, (126136), 17963 states have call successors, (17963), 724 states have call predecessors, (17963), 724 states have return successors, (17963), 17624 states have call predecessors, (17963), 17963 states have call successors, (17963) [2024-11-22 07:43:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97762 states to 97762 states and 162062 transitions. [2024-11-22 07:43:47,815 INFO L78 Accepts]: Start accepts. Automaton has 97762 states and 162062 transitions. Word has length 707 [2024-11-22 07:43:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:43:47,817 INFO L471 AbstractCegarLoop]: Abstraction has 97762 states and 162062 transitions. [2024-11-22 07:43:47,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 5 states have internal predecessors, (165), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109) [2024-11-22 07:43:47,817 INFO L276 IsEmpty]: Start isEmpty. Operand 97762 states and 162062 transitions. [2024-11-22 07:43:47,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2024-11-22 07:43:47,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:43:47,882 INFO L215 NwaCegarLoop]: trace histogram [109, 109, 109, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:43:47,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:43:47,883 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:43:47,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:43:47,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1462871339, now seen corresponding path program 1 times [2024-11-22 07:43:47,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:43:47,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214433269] [2024-11-22 07:43:47,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:43:47,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:43:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:43:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 23544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23544 trivial. 0 not checked. [2024-11-22 07:43:49,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:43:49,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214433269] [2024-11-22 07:43:49,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214433269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:43:49,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:43:49,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 07:43:49,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208590316] [2024-11-22 07:43:49,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:43:49,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 07:43:49,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:43:49,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 07:43:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:43:49,116 INFO L87 Difference]: Start difference. First operand 97762 states and 162062 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 7 states have internal predecessors, (165), 1 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 1 states have call predecessors, (109), 1 states have call successors, (109)