./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-5.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-5.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 15008c5480ac4162784403044af77a10b48a2663fed021487d04a0af163dfd9e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:44:29,662 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:44:29,723 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:44:29,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:44:29,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:44:29,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:44:29,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:44:29,752 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:44:29,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:44:29,753 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:44:29,754 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:44:29,754 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:44:29,755 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:44:29,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:44:29,757 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:44:29,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:44:29,757 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:44:29,757 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:44:29,757 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:44:29,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:44:29,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:44:29,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:44:29,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:44:29,760 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:44:29,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:44:29,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:44:29,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:44:29,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:44:29,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:44:29,762 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:44:29,762 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:44:29,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:44:29,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:44:29,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:44:29,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:44:29,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:44:29,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:44:29,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:44:29,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:44:29,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:44:29,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:44:29,766 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:44:29,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15008c5480ac4162784403044af77a10b48a2663fed021487d04a0af163dfd9e [2024-11-22 07:44:30,031 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:44:30,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:44:30,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:44:30,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:44:30,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:44:30,071 INFO L431 ainManager$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-5.i [2024-11-22 07:44:31,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:44:31,850 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:44:31,851 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-5.i [2024-11-22 07:44:31,874 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4b10e8e0/f3d65ca3f2684a62aaf5177be167f52c/FLAG4d7aa4ada [2024-11-22 07:44:31,891 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4b10e8e0/f3d65ca3f2684a62aaf5177be167f52c [2024-11-22 07:44:31,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:44:31,897 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:44:31,899 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:44:31,899 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:44:31,906 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:44:31,907 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:44:31" (1/1) ... [2024-11-22 07:44:31,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6936f367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:31, skipping insertion in model container [2024-11-22 07:44:31,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:44:31" (1/1) ... [2024-11-22 07:44:31,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:44:32,166 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-5.i[915,928] [2024-11-22 07:44:32,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:44:32,453 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:44:32,464 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-5.i[915,928] [2024-11-22 07:44:32,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:44:32,596 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:44:32,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32 WrapperNode [2024-11-22 07:44:32,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:44:32,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:44:32,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:44:32,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:44:32,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,698 INFO L138 Inliner]: procedures = 26, calls = 98, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 760 [2024-11-22 07:44:32,698 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:44:32,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:44:32,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:44:32,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:44:32,710 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,720 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,755 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 07:44:32,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,781 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,806 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:44:32,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:44:32,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:44:32,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:44:32,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (1/1) ... [2024-11-22 07:44:32,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:44:32,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:44:32,861 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 07:44:32,864 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 07:44:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:44:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:44:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:44:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:44:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:44:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:44:33,039 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:44:33,041 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:44:34,139 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-22 07:44:34,139 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:44:34,158 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:44:34,158 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:44:34,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:44:34 BoogieIcfgContainer [2024-11-22 07:44:34,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:44:34,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:44:34,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:44:34,164 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:44:34,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:44:31" (1/3) ... [2024-11-22 07:44:34,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be8adc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:44:34, skipping insertion in model container [2024-11-22 07:44:34,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:44:32" (2/3) ... [2024-11-22 07:44:34,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be8adc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:44:34, skipping insertion in model container [2024-11-22 07:44:34,165 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:44:34" (3/3) ... [2024-11-22 07:44:34,166 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-5.i [2024-11-22 07:44:34,179 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:44:34,180 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:44:34,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:44:34,239 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;@24eb34ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:44:34,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:44:34,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 222 states have (on average 1.6261261261261262) internal successors, (361), 223 states have internal predecessors, (361), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-22 07:44:34,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-11-22 07:44:34,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:34,268 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:34,269 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:34,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:34,273 INFO L85 PathProgramCache]: Analyzing trace with hash 714307685, now seen corresponding path program 1 times [2024-11-22 07:44:34,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:34,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457103839] [2024-11-22 07:44:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:34,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked. [2024-11-22 07:44:34,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:34,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457103839] [2024-11-22 07:44:34,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457103839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:44:34,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821690213] [2024-11-22 07:44:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:34,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:44:34,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:44:34,935 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 07:44:34,940 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 07:44:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:35,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:44:35,327 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:44:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked. [2024-11-22 07:44:35,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:44:35,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821690213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:35,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:44:35,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:44:35,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484240725] [2024-11-22 07:44:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:35,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:44:35,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:35,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:44:35,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:44:35,412 INFO L87 Difference]: Start difference. First operand has 310 states, 222 states have (on average 1.6261261261261262) internal successors, (361), 223 states have internal predecessors, (361), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) Second operand has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-22 07:44:35,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:35,470 INFO L93 Difference]: Finished difference Result 613 states and 1141 transitions. [2024-11-22 07:44:35,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:44:35,473 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) Word has length 570 [2024-11-22 07:44:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:35,483 INFO L225 Difference]: With dead ends: 613 [2024-11-22 07:44:35,484 INFO L226 Difference]: Without dead ends: 306 [2024-11-22 07:44:35,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 571 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 07:44:35,492 INFO L432 NwaCegarLoop]: 521 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, 521 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 07:44:35,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:35,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-22 07:44:35,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-22 07:44:35,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 219 states have internal predecessors, (351), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-22 07:44:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 521 transitions. [2024-11-22 07:44:35,594 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 521 transitions. Word has length 570 [2024-11-22 07:44:35,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:35,595 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 521 transitions. [2024-11-22 07:44:35,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 75.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-22 07:44:35,600 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 521 transitions. [2024-11-22 07:44:35,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2024-11-22 07:44:35,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:35,619 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:35,631 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 07:44:35,826 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 07:44:35,828 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:35,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1648004453, now seen corresponding path program 1 times [2024-11-22 07:44:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:35,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402567736] [2024-11-22 07:44:35,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:36,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:36,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402567736] [2024-11-22 07:44:36,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402567736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:36,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:36,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:44:36,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742458533] [2024-11-22 07:44:36,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:36,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:44:36,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:36,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:44:36,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:44:36,280 INFO L87 Difference]: Start difference. First operand 306 states and 521 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-22 07:44:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:36,353 INFO L93 Difference]: Finished difference Result 609 states and 1039 transitions. [2024-11-22 07:44:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:44:36,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 571 [2024-11-22 07:44:36,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:36,362 INFO L225 Difference]: With dead ends: 609 [2024-11-22 07:44:36,363 INFO L226 Difference]: Without dead ends: 306 [2024-11-22 07:44:36,364 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 07:44:36,365 INFO L432 NwaCegarLoop]: 505 mSDtfsCounter, 440 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:44:36,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 505 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:36,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-22 07:44:36,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2024-11-22 07:44:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 219 states have (on average 1.5981735159817352) internal successors, (350), 219 states have internal predecessors, (350), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-22 07:44:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 520 transitions. [2024-11-22 07:44:36,415 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 520 transitions. Word has length 571 [2024-11-22 07:44:36,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:36,418 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 520 transitions. [2024-11-22 07:44:36,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 2 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-22 07:44:36,419 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 520 transitions. [2024-11-22 07:44:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:44:36,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:36,444 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:36,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:44:36,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:36,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:36,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1259521368, now seen corresponding path program 1 times [2024-11-22 07:44:36,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:36,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327257828] [2024-11-22 07:44:36,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:36,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:36,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:37,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:37,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327257828] [2024-11-22 07:44:37,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327257828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:37,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:37,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:44:37,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865844899] [2024-11-22 07:44:37,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:37,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:44:37,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:37,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:44:37,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:44:37,085 INFO L87 Difference]: Start difference. First operand 306 states and 520 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:37,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:37,139 INFO L93 Difference]: Finished difference Result 912 states and 1554 transitions. [2024-11-22 07:44:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:44:37,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 572 [2024-11-22 07:44:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:37,145 INFO L225 Difference]: With dead ends: 912 [2024-11-22 07:44:37,145 INFO L226 Difference]: Without dead ends: 609 [2024-11-22 07:44:37,147 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 07:44:37,147 INFO L432 NwaCegarLoop]: 612 mSDtfsCounter, 327 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:44:37,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1117 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:37,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-22 07:44:37,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 607. [2024-11-22 07:44:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 434 states have (on average 1.599078341013825) internal successors, (694), 434 states have internal predecessors, (694), 170 states have call successors, (170), 2 states have call predecessors, (170), 2 states have return successors, (170), 170 states have call predecessors, (170), 170 states have call successors, (170) [2024-11-22 07:44:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 1034 transitions. [2024-11-22 07:44:37,224 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 1034 transitions. Word has length 572 [2024-11-22 07:44:37,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:37,226 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 1034 transitions. [2024-11-22 07:44:37,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:37,226 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 1034 transitions. [2024-11-22 07:44:37,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:44:37,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:37,238 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:37,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:44:37,238 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:37,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:37,239 INFO L85 PathProgramCache]: Analyzing trace with hash -127264042, now seen corresponding path program 1 times [2024-11-22 07:44:37,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:37,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064857360] [2024-11-22 07:44:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:37,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:37,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064857360] [2024-11-22 07:44:37,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064857360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:37,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:44:37,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963271220] [2024-11-22 07:44:37,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:37,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:44:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:44:37,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:44:37,496 INFO L87 Difference]: Start difference. First operand 607 states and 1034 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:37,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:37,597 INFO L93 Difference]: Finished difference Result 1613 states and 2736 transitions. [2024-11-22 07:44:37,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:44:37,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 572 [2024-11-22 07:44:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:37,608 INFO L225 Difference]: With dead ends: 1613 [2024-11-22 07:44:37,608 INFO L226 Difference]: Without dead ends: 1009 [2024-11-22 07:44:37,610 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 07:44:37,611 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 306 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:44:37,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1010 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2024-11-22 07:44:37,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1005. [2024-11-22 07:44:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 700 states have (on average 1.562857142857143) internal successors, (1094), 702 states have internal predecessors, (1094), 300 states have call successors, (300), 4 states have call predecessors, (300), 4 states have return successors, (300), 298 states have call predecessors, (300), 300 states have call successors, (300) [2024-11-22 07:44:37,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1694 transitions. [2024-11-22 07:44:37,747 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1694 transitions. Word has length 572 [2024-11-22 07:44:37,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:37,749 INFO L471 AbstractCegarLoop]: Abstraction has 1005 states and 1694 transitions. [2024-11-22 07:44:37,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1694 transitions. [2024-11-22 07:44:37,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:44:37,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:37,761 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:37,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:44:37,762 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:37,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash 91590676, now seen corresponding path program 1 times [2024-11-22 07:44:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:37,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308381094] [2024-11-22 07:44:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:38,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:38,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308381094] [2024-11-22 07:44:38,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308381094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:38,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:38,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:44:38,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531409600] [2024-11-22 07:44:38,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:38,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:44:38,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:38,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:44:38,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:44:38,135 INFO L87 Difference]: Start difference. First operand 1005 states and 1694 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:38,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:38,242 INFO L93 Difference]: Finished difference Result 2703 states and 4566 transitions. [2024-11-22 07:44:38,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:44:38,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 572 [2024-11-22 07:44:38,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:38,257 INFO L225 Difference]: With dead ends: 2703 [2024-11-22 07:44:38,258 INFO L226 Difference]: Without dead ends: 1701 [2024-11-22 07:44:38,263 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 07:44:38,264 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 307 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:44:38,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1205 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:38,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-11-22 07:44:38,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1695. [2024-11-22 07:44:38,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1246 states have (on average 1.5906902086677368) internal successors, (1982), 1252 states have internal predecessors, (1982), 440 states have call successors, (440), 8 states have call predecessors, (440), 8 states have return successors, (440), 434 states have call predecessors, (440), 440 states have call successors, (440) [2024-11-22 07:44:38,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2862 transitions. [2024-11-22 07:44:38,436 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2862 transitions. Word has length 572 [2024-11-22 07:44:38,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:38,437 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2862 transitions. [2024-11-22 07:44:38,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:38,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2862 transitions. [2024-11-22 07:44:38,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2024-11-22 07:44:38,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:38,450 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:38,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:44:38,450 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:38,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:38,451 INFO L85 PathProgramCache]: Analyzing trace with hash -726057774, now seen corresponding path program 1 times [2024-11-22 07:44:38,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:38,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104092846] [2024-11-22 07:44:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:38,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:38,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:38,953 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:38,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:38,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104092846] [2024-11-22 07:44:38,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104092846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:38,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:38,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:44:38,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082796925] [2024-11-22 07:44:38,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:38,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:44:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:38,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:44:38,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:44:38,960 INFO L87 Difference]: Start difference. First operand 1695 states and 2862 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:44:39,178 INFO L93 Difference]: Finished difference Result 5079 states and 8580 transitions. [2024-11-22 07:44:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:44:39,179 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 572 [2024-11-22 07:44:39,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:44:39,202 INFO L225 Difference]: With dead ends: 5079 [2024-11-22 07:44:39,203 INFO L226 Difference]: Without dead ends: 3387 [2024-11-22 07:44:39,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 07:44:39,211 INFO L432 NwaCegarLoop]: 649 mSDtfsCounter, 338 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:44:39,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 1153 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:44:39,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2024-11-22 07:44:39,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 3385. [2024-11-22 07:44:39,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 2488 states have (on average 1.585209003215434) internal successors, (3944), 2500 states have internal predecessors, (3944), 880 states have call successors, (880), 16 states have call predecessors, (880), 16 states have return successors, (880), 868 states have call predecessors, (880), 880 states have call successors, (880) [2024-11-22 07:44:39,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 5704 transitions. [2024-11-22 07:44:39,551 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 5704 transitions. Word has length 572 [2024-11-22 07:44:39,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:44:39,553 INFO L471 AbstractCegarLoop]: Abstraction has 3385 states and 5704 transitions. [2024-11-22 07:44:39,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:44:39,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 5704 transitions. [2024-11-22 07:44:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 574 [2024-11-22 07:44:39,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:44:39,560 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:39,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:44:39,561 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:44:39,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:44:39,562 INFO L85 PathProgramCache]: Analyzing trace with hash 487849874, now seen corresponding path program 1 times [2024-11-22 07:44:39,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:44:39,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874756998] [2024-11-22 07:44:39,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:44:39,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:44:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:44:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:44:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:44:44,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874756998] [2024-11-22 07:44:44,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874756998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:44:44,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:44:44,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 07:44:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178729942] [2024-11-22 07:44:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:44:44,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 07:44:44,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:44:44,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 07:44:44,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 07:44:44,818 INFO L87 Difference]: Start difference. First operand 3385 states and 5704 transitions. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:21,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:45:21,319 INFO L93 Difference]: Finished difference Result 15818 states and 26612 transitions. [2024-11-22 07:45:21,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:45:21,324 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 573 [2024-11-22 07:45:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:45:21,481 INFO L225 Difference]: With dead ends: 15818 [2024-11-22 07:45:21,482 INFO L226 Difference]: Without dead ends: 14126 [2024-11-22 07:45:21,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-22 07:45:21,511 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 3584 mSDsluCounter, 4511 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3584 SdHoareTripleChecker+Valid, 5273 SdHoareTripleChecker+Invalid, 2678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:45:21,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3584 Valid, 5273 Invalid, 2678 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [574 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 33.7s Time] [2024-11-22 07:45:21,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14126 states. [2024-11-22 07:45:22,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14126 to 8301. [2024-11-22 07:45:22,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8301 states, 6748 states have (on average 1.6372258446947243) internal successors, (11048), 6792 states have internal predecessors, (11048), 1488 states have call successors, (1488), 64 states have call predecessors, (1488), 64 states have return successors, (1488), 1444 states have call predecessors, (1488), 1488 states have call successors, (1488) [2024-11-22 07:45:22,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8301 states to 8301 states and 14024 transitions. [2024-11-22 07:45:22,676 INFO L78 Accepts]: Start accepts. Automaton has 8301 states and 14024 transitions. Word has length 573 [2024-11-22 07:45:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:45:22,677 INFO L471 AbstractCegarLoop]: Abstraction has 8301 states and 14024 transitions. [2024-11-22 07:45:22,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:22,681 INFO L276 IsEmpty]: Start isEmpty. Operand 8301 states and 14024 transitions. [2024-11-22 07:45:22,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-22 07:45:22,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:45:22,695 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:22,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:45:22,696 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:45:22,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:45:22,696 INFO L85 PathProgramCache]: Analyzing trace with hash -173229230, now seen corresponding path program 1 times [2024-11-22 07:45:22,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:45:22,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919979867] [2024-11-22 07:45:22,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:45:22,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:45:22,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:45:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:45:23,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:45:23,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919979867] [2024-11-22 07:45:23,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919979867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:45:23,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:45:23,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 07:45:23,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038392745] [2024-11-22 07:45:23,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:45:23,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 07:45:23,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:45:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 07:45:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:45:23,255 INFO L87 Difference]: Start difference. First operand 8301 states and 14024 transitions. Second operand has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:26,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:45:26,226 INFO L93 Difference]: Finished difference Result 34685 states and 58520 transitions. [2024-11-22 07:45:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 07:45:26,227 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 574 [2024-11-22 07:45:26,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:45:26,510 INFO L225 Difference]: With dead ends: 34685 [2024-11-22 07:45:26,511 INFO L226 Difference]: Without dead ends: 26387 [2024-11-22 07:45:26,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2024-11-22 07:45:26,536 INFO L432 NwaCegarLoop]: 1147 mSDtfsCounter, 2545 mSDsluCounter, 7354 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 8501 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:45:26,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2545 Valid, 8501 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-22 07:45:26,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26387 states. [2024-11-22 07:45:27,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26387 to 16389. [2024-11-22 07:45:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16389 states, 13284 states have (on average 1.6293285155073773) internal successors, (21644), 13372 states have internal predecessors, (21644), 2976 states have call successors, (2976), 128 states have call predecessors, (2976), 128 states have return successors, (2976), 2888 states have call predecessors, (2976), 2976 states have call successors, (2976) [2024-11-22 07:45:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 27596 transitions. [2024-11-22 07:45:28,032 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 27596 transitions. Word has length 574 [2024-11-22 07:45:28,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:45:28,033 INFO L471 AbstractCegarLoop]: Abstraction has 16389 states and 27596 transitions. [2024-11-22 07:45:28,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.0) internal successors, (152), 8 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:28,034 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 27596 transitions. [2024-11-22 07:45:28,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-22 07:45:28,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:45:28,045 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:28,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:45:28,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:45:28,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:45:28,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1231067308, now seen corresponding path program 1 times [2024-11-22 07:45:28,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:45:28,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323448085] [2024-11-22 07:45:28,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:45:28,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:45:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:45:28,976 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:45:28,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:45:28,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323448085] [2024-11-22 07:45:28,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323448085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:45:28,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:45:28,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 07:45:28,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260086435] [2024-11-22 07:45:28,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:45:28,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 07:45:28,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:45:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 07:45:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:45:28,980 INFO L87 Difference]: Start difference. First operand 16389 states and 27596 transitions. Second operand has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:32,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:45:32,942 INFO L93 Difference]: Finished difference Result 56385 states and 94866 transitions. [2024-11-22 07:45:32,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:45:32,943 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 574 [2024-11-22 07:45:32,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:45:33,062 INFO L225 Difference]: With dead ends: 56385 [2024-11-22 07:45:33,062 INFO L226 Difference]: Without dead ends: 39999 [2024-11-22 07:45:33,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342 [2024-11-22 07:45:33,103 INFO L432 NwaCegarLoop]: 1152 mSDtfsCounter, 2332 mSDsluCounter, 6023 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:45:33,104 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 7175 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-22 07:45:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39999 states. [2024-11-22 07:45:35,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39999 to 16405. [2024-11-22 07:45:35,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16405 states, 13300 states have (on average 1.6297744360902255) internal successors, (21676), 13388 states have internal predecessors, (21676), 2976 states have call successors, (2976), 128 states have call predecessors, (2976), 128 states have return successors, (2976), 2888 states have call predecessors, (2976), 2976 states have call successors, (2976) [2024-11-22 07:45:35,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16405 states to 16405 states and 27628 transitions. [2024-11-22 07:45:35,451 INFO L78 Accepts]: Start accepts. Automaton has 16405 states and 27628 transitions. Word has length 574 [2024-11-22 07:45:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:45:35,452 INFO L471 AbstractCegarLoop]: Abstraction has 16405 states and 27628 transitions. [2024-11-22 07:45:35,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.88888888888889) internal successors, (152), 9 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-22 07:45:35,452 INFO L276 IsEmpty]: Start isEmpty. Operand 16405 states and 27628 transitions. [2024-11-22 07:45:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-22 07:45:35,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:45:35,466 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:35,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:45:35,466 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:45:35,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:45:35,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1914918181, now seen corresponding path program 1 times [2024-11-22 07:45:35,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:45:35,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64734110] [2024-11-22 07:45:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:45:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:45:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:45:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-22 07:45:38,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:45:38,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64734110] [2024-11-22 07:45:38,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64734110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:45:38,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:45:38,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 07:45:38,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103422726] [2024-11-22 07:45:38,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:45:38,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 07:45:38,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:45:38,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 07:45:38,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:45:38,828 INFO L87 Difference]: Start difference. First operand 16405 states and 27628 transitions. Second operand has 11 states, 11 states have (on average 13.818181818181818) internal successors, (152), 11 states have internal predecessors, (152), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)