./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.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 91568889e64309585cc4780728e0f3ac2bb8be964788cb7e1aee4dd059fc722f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:50:31,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:50:31,813 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:50:31,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:50:31,819 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:50:31,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:50:31,855 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:50:31,856 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:50:31,856 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:50:31,857 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:50:31,857 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:50:31,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:50:31,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:50:31,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:50:31,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:50:31,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:50:31,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:50:31,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:50:31,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:50:31,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:50:31,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:50:31,862 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:50:31,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:50:31,863 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:50:31,865 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:50:31,866 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:50:31,866 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:50:31,867 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:50:31,867 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:50:31,867 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:50:31,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:50:31,868 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:50:31,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:31,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:50:31,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:50:31,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:50:31,870 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:50:31,870 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:50:31,870 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:50:31,871 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:50:31,871 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:50:31,875 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:50:31,878 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91568889e64309585cc4780728e0f3ac2bb8be964788cb7e1aee4dd059fc722f [2024-11-18 19:50:32,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:50:32,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:50:32,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:50:32,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:50:32,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:50:32,138 INFO L431 ainManager$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-24.i [2024-11-18 19:50:33,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:50:33,926 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:50:33,928 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-24.i [2024-11-18 19:50:33,953 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff35ca8/fee7b1b1eb0b42e4ae30d630c9a7ec09/FLAGf790079be [2024-11-18 19:50:33,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27ff35ca8/fee7b1b1eb0b42e4ae30d630c9a7ec09 [2024-11-18 19:50:33,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:50:33,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:50:33,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:33,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:50:33,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:50:33,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:33" (1/1) ... [2024-11-18 19:50:33,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e1cefb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:33, skipping insertion in model container [2024-11-18 19:50:33,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:33" (1/1) ... [2024-11-18 19:50:34,042 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:50:34,229 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-24.i[916,929] [2024-11-18 19:50:34,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:34,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:50:34,474 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-24.i[916,929] [2024-11-18 19:50:34,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:50:34,611 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:50:34,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34 WrapperNode [2024-11-18 19:50:34,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:50:34,613 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:34,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:50:34,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:50:34,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,651 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,747 INFO L138 Inliner]: procedures = 26, calls = 120, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 909 [2024-11-18 19:50:34,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:50:34,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:50:34,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:50:34,750 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:50:34,761 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,778 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,816 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 19:50:34,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:50:34,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:50:34,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:50:34,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:50:34,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (1/1) ... [2024-11-18 19:50:34,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:50:34,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:35,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 19:50:35,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 19:50:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:50:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:50:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:50:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:50:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:50:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:50:35,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:50:35,210 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:50:36,726 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-18 19:50:36,726 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:50:36,758 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:50:36,762 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:50:36,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:36 BoogieIcfgContainer [2024-11-18 19:50:36,763 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:50:36,765 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:50:36,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:50:36,769 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:50:36,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:33" (1/3) ... [2024-11-18 19:50:36,770 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eef1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:36, skipping insertion in model container [2024-11-18 19:50:36,771 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:34" (2/3) ... [2024-11-18 19:50:36,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eef1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:36, skipping insertion in model container [2024-11-18 19:50:36,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:36" (3/3) ... [2024-11-18 19:50:36,773 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-24.i [2024-11-18 19:50:36,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:50:36,790 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:50:36,877 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:50:36,883 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;@3f79d15a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:50:36,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:50:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 266 states have (on average 1.5902255639097744) internal successors, (423), 267 states have internal predecessors, (423), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 19:50:36,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-18 19:50:36,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:36,934 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:36,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:36,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:36,944 INFO L85 PathProgramCache]: Analyzing trace with hash -484971260, now seen corresponding path program 1 times [2024-11-18 19:50:36,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:36,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239122079] [2024-11-18 19:50:36,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:36,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-18 19:50:37,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:37,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239122079] [2024-11-18 19:50:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239122079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:50:37,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762962368] [2024-11-18 19:50:37,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:37,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:50:37,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:50:37,710 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:50:37,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:50:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:38,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 1566 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:50:38,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:50:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 212 proven. 0 refuted. 0 times theorem prover too weak. 22472 trivial. 0 not checked. [2024-11-18 19:50:38,291 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:50:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762962368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:38,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:50:38,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:50:38,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664557538] [2024-11-18 19:50:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:38,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:50:38,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:50:38,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:50:38,335 INFO L87 Difference]: Start difference. First operand has 376 states, 266 states have (on average 1.5902255639097744) internal successors, (423), 267 states have internal predecessors, (423), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:50:38,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:38,427 INFO L93 Difference]: Finished difference Result 745 states and 1375 transitions. [2024-11-18 19:50:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:50:38,432 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) Word has length 690 [2024-11-18 19:50:38,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:38,445 INFO L225 Difference]: With dead ends: 745 [2024-11-18 19:50:38,446 INFO L226 Difference]: Without dead ends: 372 [2024-11-18 19:50:38,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:50:38,460 INFO L432 NwaCegarLoop]: 629 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, 629 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:38,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:38,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-18 19:50:38,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-18 19:50:38,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 263 states have (on average 1.5779467680608366) internal successors, (415), 263 states have internal predecessors, (415), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 19:50:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 629 transitions. [2024-11-18 19:50:38,568 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 629 transitions. Word has length 690 [2024-11-18 19:50:38,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:38,570 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 629 transitions. [2024-11-18 19:50:38,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 80.0) internal successors, (160), 2 states have internal predecessors, (160), 2 states have call successors, (107), 2 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-18 19:50:38,571 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 629 transitions. [2024-11-18 19:50:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 691 [2024-11-18 19:50:38,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:38,591 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:38,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:50:38,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:50:38,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:38,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 200180738, now seen corresponding path program 1 times [2024-11-18 19:50:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:38,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181028532] [2024-11-18 19:50:38,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:39,426 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:39,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:39,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181028532] [2024-11-18 19:50:39,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181028532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:39,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:39,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:39,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608094924] [2024-11-18 19:50:39,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:39,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:39,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:39,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:39,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:39,432 INFO L87 Difference]: Start difference. First operand 372 states and 629 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:39,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:39,485 INFO L93 Difference]: Finished difference Result 741 states and 1255 transitions. [2024-11-18 19:50:39,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:39,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 690 [2024-11-18 19:50:39,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:39,497 INFO L225 Difference]: With dead ends: 741 [2024-11-18 19:50:39,497 INFO L226 Difference]: Without dead ends: 372 [2024-11-18 19:50:39,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:39,501 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1248 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:39,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1248 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-18 19:50:39,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2024-11-18 19:50:39,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 263 states have (on average 1.5741444866920151) internal successors, (414), 263 states have internal predecessors, (414), 107 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-18 19:50:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 628 transitions. [2024-11-18 19:50:39,551 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 628 transitions. Word has length 690 [2024-11-18 19:50:39,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:39,555 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 628 transitions. [2024-11-18 19:50:39,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 628 transitions. [2024-11-18 19:50:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-18 19:50:39,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:39,566 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:39,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:50:39,566 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:39,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1953369123, now seen corresponding path program 1 times [2024-11-18 19:50:39,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:39,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18138893] [2024-11-18 19:50:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:39,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:39,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:40,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:40,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18138893] [2024-11-18 19:50:40,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18138893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:40,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393833488] [2024-11-18 19:50:40,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:40,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:40,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:40,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:40,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:40,046 INFO L87 Difference]: Start difference. First operand 372 states and 628 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:40,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:40,161 INFO L93 Difference]: Finished difference Result 959 states and 1627 transitions. [2024-11-18 19:50:40,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:40,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 692 [2024-11-18 19:50:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:40,172 INFO L225 Difference]: With dead ends: 959 [2024-11-18 19:50:40,173 INFO L226 Difference]: Without dead ends: 590 [2024-11-18 19:50:40,174 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:40,176 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 365 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:40,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1272 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 19:50:40,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-18 19:50:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2024-11-18 19:50:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 453 states have (on average 1.609271523178808) internal successors, (729), 454 states have internal predecessors, (729), 131 states have call successors, (131), 2 states have call predecessors, (131), 2 states have return successors, (131), 130 states have call predecessors, (131), 131 states have call successors, (131) [2024-11-18 19:50:40,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 991 transitions. [2024-11-18 19:50:40,238 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 991 transitions. Word has length 692 [2024-11-18 19:50:40,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:40,244 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 991 transitions. [2024-11-18 19:50:40,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:40,245 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 991 transitions. [2024-11-18 19:50:40,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2024-11-18 19:50:40,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:40,257 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:40,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:50:40,258 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:40,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:40,259 INFO L85 PathProgramCache]: Analyzing trace with hash 100063641, now seen corresponding path program 1 times [2024-11-18 19:50:40,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787208264] [2024-11-18 19:50:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:40,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:40,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:40,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787208264] [2024-11-18 19:50:40,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787208264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:40,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:40,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:40,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775084320] [2024-11-18 19:50:40,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:40,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:40,632 INFO L87 Difference]: Start difference. First operand 587 states and 991 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:40,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:40,714 INFO L93 Difference]: Finished difference Result 1569 states and 2652 transitions. [2024-11-18 19:50:40,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:40,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 692 [2024-11-18 19:50:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:40,743 INFO L225 Difference]: With dead ends: 1569 [2024-11-18 19:50:40,744 INFO L226 Difference]: Without dead ends: 985 [2024-11-18 19:50:40,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:40,749 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 318 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1296 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:40,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1296 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 985 states. [2024-11-18 19:50:40,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 985 to 982. [2024-11-18 19:50:40,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 796 states have (on average 1.620603015075377) internal successors, (1290), 799 states have internal predecessors, (1290), 181 states have call successors, (181), 4 states have call predecessors, (181), 4 states have return successors, (181), 178 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-18 19:50:40,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1652 transitions. [2024-11-18 19:50:40,816 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1652 transitions. Word has length 692 [2024-11-18 19:50:40,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:40,819 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1652 transitions. [2024-11-18 19:50:40,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1652 transitions. [2024-11-18 19:50:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-18 19:50:40,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:40,827 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:40,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:50:40,828 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:40,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:40,830 INFO L85 PathProgramCache]: Analyzing trace with hash -521577118, now seen corresponding path program 1 times [2024-11-18 19:50:40,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:40,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856744637] [2024-11-18 19:50:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:40,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:41,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:41,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856744637] [2024-11-18 19:50:41,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856744637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:41,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:41,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:41,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890613094] [2024-11-18 19:50:41,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:41,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:41,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:41,262 INFO L87 Difference]: Start difference. First operand 982 states and 1652 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:41,357 INFO L93 Difference]: Finished difference Result 2790 states and 4701 transitions. [2024-11-18 19:50:41,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:41,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 693 [2024-11-18 19:50:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:41,369 INFO L225 Difference]: With dead ends: 2790 [2024-11-18 19:50:41,369 INFO L226 Difference]: Without dead ends: 1811 [2024-11-18 19:50:41,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:41,373 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 330 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:41,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1311 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-18 19:50:41,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1808. [2024-11-18 19:50:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1516 states have (on average 1.6279683377308707) internal successors, (2468), 1523 states have internal predecessors, (2468), 283 states have call successors, (283), 8 states have call predecessors, (283), 8 states have return successors, (283), 276 states have call predecessors, (283), 283 states have call successors, (283) [2024-11-18 19:50:41,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 3034 transitions. [2024-11-18 19:50:41,455 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 3034 transitions. Word has length 693 [2024-11-18 19:50:41,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:41,456 INFO L471 AbstractCegarLoop]: Abstraction has 1808 states and 3034 transitions. [2024-11-18 19:50:41,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:41,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 3034 transitions. [2024-11-18 19:50:41,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 694 [2024-11-18 19:50:41,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:41,483 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:41,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:50:41,483 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:41,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:41,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1967951844, now seen corresponding path program 1 times [2024-11-18 19:50:41,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:41,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947097611] [2024-11-18 19:50:41,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:41,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:42,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:42,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947097611] [2024-11-18 19:50:42,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947097611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:42,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:42,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:50:42,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289263815] [2024-11-18 19:50:42,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:42,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:50:42,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:42,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:50:42,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:50:42,274 INFO L87 Difference]: Start difference. First operand 1808 states and 3034 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:42,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:42,891 INFO L93 Difference]: Finished difference Result 5644 states and 9457 transitions. [2024-11-18 19:50:42,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:50:42,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 693 [2024-11-18 19:50:42,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:42,915 INFO L225 Difference]: With dead ends: 5644 [2024-11-18 19:50:42,915 INFO L226 Difference]: Without dead ends: 3839 [2024-11-18 19:50:42,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:42,923 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 678 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:42,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1886 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:50:42,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3839 states. [2024-11-18 19:50:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3839 to 3611. [2024-11-18 19:50:43,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3611 states, 3028 states have (on average 1.6261558784676353) internal successors, (4924), 3042 states have internal predecessors, (4924), 566 states have call successors, (566), 16 states have call predecessors, (566), 16 states have return successors, (566), 552 states have call predecessors, (566), 566 states have call successors, (566) [2024-11-18 19:50:43,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3611 states to 3611 states and 6056 transitions. [2024-11-18 19:50:43,243 INFO L78 Accepts]: Start accepts. Automaton has 3611 states and 6056 transitions. Word has length 693 [2024-11-18 19:50:43,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:43,244 INFO L471 AbstractCegarLoop]: Abstraction has 3611 states and 6056 transitions. [2024-11-18 19:50:43,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 3611 states and 6056 transitions. [2024-11-18 19:50:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-18 19:50:43,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:43,257 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:43,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:50:43,257 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:43,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1561819567, now seen corresponding path program 1 times [2024-11-18 19:50:43,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:43,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326469934] [2024-11-18 19:50:43,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:43,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:43,850 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:43,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:43,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326469934] [2024-11-18 19:50:43,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326469934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:43,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:43,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:50:43,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203128751] [2024-11-18 19:50:43,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:43,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:50:43,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:50:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:43,854 INFO L87 Difference]: Start difference. First operand 3611 states and 6056 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:44,267 INFO L93 Difference]: Finished difference Result 10453 states and 17536 transitions. [2024-11-18 19:50:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:50:44,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-18 19:50:44,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:44,302 INFO L225 Difference]: With dead ends: 10453 [2024-11-18 19:50:44,303 INFO L226 Difference]: Without dead ends: 6845 [2024-11-18 19:50:44,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:50:44,315 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 392 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:44,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 2318 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:50:44,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6845 states. [2024-11-18 19:50:44,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6845 to 6827. [2024-11-18 19:50:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6827 states, 5908 states have (on average 1.6404874746106974) internal successors, (9692), 5938 states have internal predecessors, (9692), 886 states have call successors, (886), 32 states have call predecessors, (886), 32 states have return successors, (886), 856 states have call predecessors, (886), 886 states have call successors, (886) [2024-11-18 19:50:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6827 states to 6827 states and 11464 transitions. [2024-11-18 19:50:44,736 INFO L78 Accepts]: Start accepts. Automaton has 6827 states and 11464 transitions. Word has length 694 [2024-11-18 19:50:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:44,737 INFO L471 AbstractCegarLoop]: Abstraction has 6827 states and 11464 transitions. [2024-11-18 19:50:44,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:44,738 INFO L276 IsEmpty]: Start isEmpty. Operand 6827 states and 11464 transitions. [2024-11-18 19:50:44,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-18 19:50:44,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:44,754 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:44,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:50:44,755 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:44,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1962414163, now seen corresponding path program 1 times [2024-11-18 19:50:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:44,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995140664] [2024-11-18 19:50:44,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:44,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:45,560 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:45,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:45,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995140664] [2024-11-18 19:50:45,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995140664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:45,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:45,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:50:45,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794497237] [2024-11-18 19:50:45,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:45,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:50:45,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:45,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:50:45,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:45,564 INFO L87 Difference]: Start difference. First operand 6827 states and 11464 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:46,102 INFO L93 Difference]: Finished difference Result 20475 states and 34386 transitions. [2024-11-18 19:50:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:50:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-18 19:50:46,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:46,212 INFO L225 Difference]: With dead ends: 20475 [2024-11-18 19:50:46,213 INFO L226 Difference]: Without dead ends: 13651 [2024-11-18 19:50:46,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:50:46,238 INFO L432 NwaCegarLoop]: 626 mSDtfsCounter, 398 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:46,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 1246 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:50:46,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13651 states. [2024-11-18 19:50:47,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13651 to 13649. [2024-11-18 19:50:47,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13649 states, 11812 states have (on average 1.6352861496782933) internal successors, (19316), 11872 states have internal predecessors, (19316), 1772 states have call successors, (1772), 64 states have call predecessors, (1772), 64 states have return successors, (1772), 1712 states have call predecessors, (1772), 1772 states have call successors, (1772) [2024-11-18 19:50:47,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13649 states to 13649 states and 22860 transitions. [2024-11-18 19:50:47,430 INFO L78 Accepts]: Start accepts. Automaton has 13649 states and 22860 transitions. Word has length 694 [2024-11-18 19:50:47,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:50:47,432 INFO L471 AbstractCegarLoop]: Abstraction has 13649 states and 22860 transitions. [2024-11-18 19:50:47,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:47,433 INFO L276 IsEmpty]: Start isEmpty. Operand 13649 states and 22860 transitions. [2024-11-18 19:50:47,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-18 19:50:47,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:50:47,448 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:50:47,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:50:47,448 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:50:47,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:50:47,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1571896745, now seen corresponding path program 1 times [2024-11-18 19:50:47,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:50:47,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322073914] [2024-11-18 19:50:47,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:50:47,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:50:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:50:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:50:49,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:50:49,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322073914] [2024-11-18 19:50:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322073914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:50:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:50:49,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:50:49,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372015333] [2024-11-18 19:50:49,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:50:49,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:50:49,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:50:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:50:49,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:50:49,572 INFO L87 Difference]: Start difference. First operand 13649 states and 22860 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:50:57,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:50:57,556 INFO L93 Difference]: Finished difference Result 75207 states and 125529 transitions. [2024-11-18 19:50:57,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 19:50:57,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-18 19:50:57,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:50:57,830 INFO L225 Difference]: With dead ends: 75207 [2024-11-18 19:50:57,830 INFO L226 Difference]: Without dead ends: 61561 [2024-11-18 19:50:57,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-18 19:50:57,910 INFO L432 NwaCegarLoop]: 706 mSDtfsCounter, 1497 mSDsluCounter, 3177 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3883 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:50:57,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 3883 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 19:50:57,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61561 states. [2024-11-18 19:51:01,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61561 to 29281. [2024-11-18 19:51:01,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29281 states, 25844 states have (on average 1.6426249806531497) internal successors, (42452), 25968 states have internal predecessors, (42452), 3308 states have call successors, (3308), 128 states have call predecessors, (3308), 128 states have return successors, (3308), 3184 states have call predecessors, (3308), 3308 states have call successors, (3308) [2024-11-18 19:51:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29281 states to 29281 states and 49068 transitions. [2024-11-18 19:51:01,346 INFO L78 Accepts]: Start accepts. Automaton has 29281 states and 49068 transitions. Word has length 694 [2024-11-18 19:51:01,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:01,348 INFO L471 AbstractCegarLoop]: Abstraction has 29281 states and 49068 transitions. [2024-11-18 19:51:01,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 7 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 29281 states and 49068 transitions. [2024-11-18 19:51:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2024-11-18 19:51:01,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:01,379 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:01,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:51:01,379 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:01,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:01,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2035350805, now seen corresponding path program 1 times [2024-11-18 19:51:01,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:01,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653968595] [2024-11-18 19:51:01,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:01,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:02,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:02,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653968595] [2024-11-18 19:51:02,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653968595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:02,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:02,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:51:02,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102550368] [2024-11-18 19:51:02,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:02,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:51:02,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:02,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:51:02,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:02,496 INFO L87 Difference]: Start difference. First operand 29281 states and 49068 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:06,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:06,408 INFO L93 Difference]: Finished difference Result 101951 states and 170823 transitions. [2024-11-18 19:51:06,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:51:06,409 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 694 [2024-11-18 19:51:06,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:06,713 INFO L225 Difference]: With dead ends: 101951 [2024-11-18 19:51:06,713 INFO L226 Difference]: Without dead ends: 72673 [2024-11-18 19:51:06,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:51:06,812 INFO L432 NwaCegarLoop]: 875 mSDtfsCounter, 827 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:06,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2206 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:51:06,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72673 states. [2024-11-18 19:51:10,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72673 to 58733. [2024-11-18 19:51:10,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58733 states, 51860 states have (on average 1.6418819899730042) internal successors, (85148), 52108 states have internal predecessors, (85148), 6616 states have call successors, (6616), 256 states have call predecessors, (6616), 256 states have return successors, (6616), 6368 states have call predecessors, (6616), 6616 states have call successors, (6616) [2024-11-18 19:51:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58733 states to 58733 states and 98380 transitions. [2024-11-18 19:51:11,107 INFO L78 Accepts]: Start accepts. Automaton has 58733 states and 98380 transitions. Word has length 694 [2024-11-18 19:51:11,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:11,108 INFO L471 AbstractCegarLoop]: Abstraction has 58733 states and 98380 transitions. [2024-11-18 19:51:11,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:11,109 INFO L276 IsEmpty]: Start isEmpty. Operand 58733 states and 98380 transitions. [2024-11-18 19:51:11,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-18 19:51:11,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:11,149 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:11,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:51:11,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:11,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:11,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1355759774, now seen corresponding path program 1 times [2024-11-18 19:51:11,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:11,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458515657] [2024-11-18 19:51:11,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:13,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:13,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458515657] [2024-11-18 19:51:13,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458515657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:13,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:13,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:51:13,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115988877] [2024-11-18 19:51:13,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:13,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:51:13,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:13,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:51:13,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:51:13,943 INFO L87 Difference]: Start difference. First operand 58733 states and 98380 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:31,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:51:31,646 INFO L93 Difference]: Finished difference Result 202633 states and 338018 transitions. [2024-11-18 19:51:31,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 19:51:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) Word has length 695 [2024-11-18 19:51:31,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:51:32,476 INFO L225 Difference]: With dead ends: 202633 [2024-11-18 19:51:32,476 INFO L226 Difference]: Without dead ends: 143903 [2024-11-18 19:51:32,617 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-18 19:51:32,618 INFO L432 NwaCegarLoop]: 1001 mSDtfsCounter, 1971 mSDsluCounter, 3935 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 1719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:51:32,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1971 Valid, 4936 Invalid, 1719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 19:51:32,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143903 states. [2024-11-18 19:51:38,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143903 to 59117. [2024-11-18 19:51:38,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59117 states, 52244 states have (on average 1.6420641604777582) internal successors, (85788), 52492 states have internal predecessors, (85788), 6616 states have call successors, (6616), 256 states have call predecessors, (6616), 256 states have return successors, (6616), 6368 states have call predecessors, (6616), 6616 states have call successors, (6616) [2024-11-18 19:51:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59117 states to 59117 states and 99020 transitions. [2024-11-18 19:51:39,288 INFO L78 Accepts]: Start accepts. Automaton has 59117 states and 99020 transitions. Word has length 695 [2024-11-18 19:51:39,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:51:39,290 INFO L471 AbstractCegarLoop]: Abstraction has 59117 states and 99020 transitions. [2024-11-18 19:51:39,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107) [2024-11-18 19:51:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 59117 states and 99020 transitions. [2024-11-18 19:51:39,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 696 [2024-11-18 19:51:39,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:51:39,338 INFO L215 NwaCegarLoop]: trace histogram [107, 107, 107, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 19:51:39,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:51:39,338 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:51:39,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:51:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash -91828724, now seen corresponding path program 1 times [2024-11-18 19:51:39,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:51:39,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985678144] [2024-11-18 19:51:39,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:51:39,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:51:39,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:51:40,884 INFO L134 CoverageAnalysis]: Checked inductivity of 22684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22684 trivial. 0 not checked. [2024-11-18 19:51:40,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:51:40,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985678144] [2024-11-18 19:51:40,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985678144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:51:40,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:51:40,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 19:51:40,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654642172] [2024-11-18 19:51:40,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:51:40,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 19:51:40,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:51:40,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 19:51:40,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:51:40,901 INFO L87 Difference]: Start difference. First operand 59117 states and 99020 transitions. Second operand has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (107), 1 states have call predecessors, (107), 1 states have return successors, (107), 1 states have call predecessors, (107), 1 states have call successors, (107)