./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-81.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_fillercodestructure_filler-pe-co_file-81.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 c0b041aa2b39223b19922ade0fcc5fbdd940e679150ec973bead00d3f56ba2c8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 20:38:53,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 20:38:53,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 20:38:53,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 20:38:53,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 20:38:53,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 20:38:53,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 20:38:53,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 20:38:53,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 20:38:53,791 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 20:38:53,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 20:38:53,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 20:38:53,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 20:38:53,793 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 20:38:53,793 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 20:38:53,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 20:38:53,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 20:38:53,794 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 20:38:53,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 20:38:53,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 20:38:53,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 20:38:53,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 20:38:53,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 20:38:53,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 20:38:53,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 20:38:53,795 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 20:38:53,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 20:38:53,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 20:38:53,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 20:38:53,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 20:38:53,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 20:38:53,797 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 20:38:53,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:38:53,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 20:38:53,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 20:38:53,798 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 20:38:53,798 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 20:38:53,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 20:38:53,798 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 20:38:53,798 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 20:38:53,799 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 20:38:53,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 20:38:53,800 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0b041aa2b39223b19922ade0fcc5fbdd940e679150ec973bead00d3f56ba2c8 [2024-11-18 20:38:53,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 20:38:54,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 20:38:54,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 20:38:54,023 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 20:38:54,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 20:38:54,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-81.i [2024-11-18 20:38:55,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 20:38:55,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 20:38:55,364 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-81.i [2024-11-18 20:38:55,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bf0ec80/459c16aca93f47a383bb472beba87b9e/FLAG21b6cf709 [2024-11-18 20:38:55,385 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7bf0ec80/459c16aca93f47a383bb472beba87b9e [2024-11-18 20:38:55,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 20:38:55,388 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 20:38:55,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 20:38:55,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 20:38:55,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 20:38:55,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c30f79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55, skipping insertion in model container [2024-11-18 20:38:55,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,417 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 20:38:55,587 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_fillercodestructure_filler-pe-co_file-81.i[919,932] [2024-11-18 20:38:55,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:38:55,697 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 20:38:55,705 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_fillercodestructure_filler-pe-co_file-81.i[919,932] [2024-11-18 20:38:55,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:38:55,772 INFO L204 MainTranslator]: Completed translation [2024-11-18 20:38:55,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55 WrapperNode [2024-11-18 20:38:55,773 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 20:38:55,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 20:38:55,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 20:38:55,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 20:38:55,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,794 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,827 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 302 [2024-11-18 20:38:55,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 20:38:55,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 20:38:55,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 20:38:55,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 20:38:55,837 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,843 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,861 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 20:38:55,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,888 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,891 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,896 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 20:38:55,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 20:38:55,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 20:38:55,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 20:38:55,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (1/1) ... [2024-11-18 20:38:55,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:38:55,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:38:55,922 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 20:38:55,924 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 20:38:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 20:38:55,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 20:38:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 20:38:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 20:38:55,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 20:38:55,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 20:38:56,035 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 20:38:56,037 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 20:38:56,442 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-18 20:38:56,443 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 20:38:56,457 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 20:38:56,458 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 20:38:56,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:38:56 BoogieIcfgContainer [2024-11-18 20:38:56,458 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 20:38:56,460 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 20:38:56,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 20:38:56,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 20:38:56,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:38:55" (1/3) ... [2024-11-18 20:38:56,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cbda0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:38:56, skipping insertion in model container [2024-11-18 20:38:56,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:38:55" (2/3) ... [2024-11-18 20:38:56,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10cbda0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:38:56, skipping insertion in model container [2024-11-18 20:38:56,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:38:56" (3/3) ... [2024-11-18 20:38:56,466 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-81.i [2024-11-18 20:38:56,478 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 20:38:56,478 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 20:38:56,537 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 20:38:56,542 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;@39c4b5e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 20:38:56,542 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 20:38:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 80 states have (on average 1.425) internal successors, (114), 81 states have internal predecessors, (114), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-18 20:38:56,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:38:56,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:38:56,561 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:56,562 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:38:56,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:38:56,567 INFO L85 PathProgramCache]: Analyzing trace with hash -757152195, now seen corresponding path program 1 times [2024-11-18 20:38:56,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:38:56,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460511619] [2024-11-18 20:38:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:38:56,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:38:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:38:57,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2024-11-18 20:38:57,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:38:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460511619] [2024-11-18 20:38:57,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460511619] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 20:38:57,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809326077] [2024-11-18 20:38:57,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:38:57,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 20:38:57,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:38:57,030 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 20:38:57,031 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 20:38:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:38:57,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 20:38:57,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 20:38:57,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2024-11-18 20:38:57,277 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 20:38:57,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809326077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:38:57,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 20:38:57,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 20:38:57,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714903389] [2024-11-18 20:38:57,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:38:57,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 20:38:57,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:38:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 20:38:57,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 20:38:57,307 INFO L87 Difference]: Start difference. First operand has 131 states, 80 states have (on average 1.425) internal successors, (114), 81 states have internal predecessors, (114), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:38:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:38:57,334 INFO L93 Difference]: Finished difference Result 255 states and 462 transitions. [2024-11-18 20:38:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 20:38:57,336 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-18 20:38:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:38:57,342 INFO L225 Difference]: With dead ends: 255 [2024-11-18 20:38:57,342 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 20:38:57,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 296 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 20:38:57,347 INFO L432 NwaCegarLoop]: 203 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, 203 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 20:38:57,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:38:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 20:38:57,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 20:38:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 77 states have (on average 1.3896103896103895) internal successors, (107), 77 states have internal predecessors, (107), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-18 20:38:57,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 203 transitions. [2024-11-18 20:38:57,400 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 203 transitions. Word has length 295 [2024-11-18 20:38:57,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:38:57,401 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 203 transitions. [2024-11-18 20:38:57,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:38:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 203 transitions. [2024-11-18 20:38:57,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:38:57,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:38:57,409 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:38:57,423 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 20:38:57,610 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 20:38:57,610 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:38:57,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:38:57,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1235359541, now seen corresponding path program 1 times [2024-11-18 20:38:57,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:38:57,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207705783] [2024-11-18 20:38:57,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:38:57,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:38:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:38:59,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:38:59,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:38:59,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207705783] [2024-11-18 20:38:59,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207705783] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:38:59,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:38:59,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 20:38:59,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416310925] [2024-11-18 20:38:59,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:38:59,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 20:38:59,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:38:59,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 20:38:59,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 20:38:59,479 INFO L87 Difference]: Start difference. First operand 127 states and 203 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:00,525 INFO L93 Difference]: Finished difference Result 418 states and 672 transitions. [2024-11-18 20:39:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 20:39:00,526 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 295 [2024-11-18 20:39:00,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:00,531 INFO L225 Difference]: With dead ends: 418 [2024-11-18 20:39:00,531 INFO L226 Difference]: Without dead ends: 294 [2024-11-18 20:39:00,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-18 20:39:00,533 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 384 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:00,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 860 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 20:39:00,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-18 20:39:00,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 212. [2024-11-18 20:39:00,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 113 states have internal predecessors, (146), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 20:39:00,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 338 transitions. [2024-11-18 20:39:00,572 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 338 transitions. Word has length 295 [2024-11-18 20:39:00,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:00,573 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 338 transitions. [2024-11-18 20:39:00,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:00,573 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 338 transitions. [2024-11-18 20:39:00,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:00,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:00,580 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:00,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 20:39:00,581 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:00,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:00,581 INFO L85 PathProgramCache]: Analyzing trace with hash 812657715, now seen corresponding path program 1 times [2024-11-18 20:39:00,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:00,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176185120] [2024-11-18 20:39:00,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:00,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:11,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:11,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:11,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176185120] [2024-11-18 20:39:11,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176185120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:11,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:11,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 20:39:11,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988191558] [2024-11-18 20:39:11,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:11,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 20:39:11,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 20:39:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-18 20:39:11,993 INFO L87 Difference]: Start difference. First operand 212 states and 338 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:15,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:15,587 INFO L93 Difference]: Finished difference Result 540 states and 867 transitions. [2024-11-18 20:39:15,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 20:39:15,588 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-18 20:39:15,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:15,593 INFO L225 Difference]: With dead ends: 540 [2024-11-18 20:39:15,595 INFO L226 Difference]: Without dead ends: 416 [2024-11-18 20:39:15,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2024-11-18 20:39:15,596 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1191 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 1282 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:15,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 1282 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 20:39:15,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-18 20:39:15,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 244. [2024-11-18 20:39:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 145 states have (on average 1.3793103448275863) internal successors, (200), 145 states have internal predecessors, (200), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 20:39:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 392 transitions. [2024-11-18 20:39:15,630 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 392 transitions. Word has length 295 [2024-11-18 20:39:15,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:15,630 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 392 transitions. [2024-11-18 20:39:15,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 392 transitions. [2024-11-18 20:39:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:15,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:15,633 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:15,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 20:39:15,634 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:15,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:15,634 INFO L85 PathProgramCache]: Analyzing trace with hash -876286027, now seen corresponding path program 1 times [2024-11-18 20:39:15,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:15,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051094498] [2024-11-18 20:39:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:15,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:15,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:15,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:15,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051094498] [2024-11-18 20:39:15,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051094498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:15,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:15,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 20:39:15,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559268495] [2024-11-18 20:39:15,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:15,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 20:39:15,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:15,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 20:39:15,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 20:39:15,889 INFO L87 Difference]: Start difference. First operand 244 states and 392 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:15,949 INFO L93 Difference]: Finished difference Result 422 states and 676 transitions. [2024-11-18 20:39:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 20:39:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 295 [2024-11-18 20:39:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:15,953 INFO L225 Difference]: With dead ends: 422 [2024-11-18 20:39:15,954 INFO L226 Difference]: Without dead ends: 298 [2024-11-18 20:39:15,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 20:39:15,955 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 77 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:15,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 600 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:39:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-18 20:39:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 295. [2024-11-18 20:39:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 191 states have (on average 1.418848167539267) internal successors, (271), 192 states have internal predecessors, (271), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:39:15,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 471 transitions. [2024-11-18 20:39:15,985 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 471 transitions. Word has length 295 [2024-11-18 20:39:15,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:15,986 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 471 transitions. [2024-11-18 20:39:15,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:15,986 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 471 transitions. [2024-11-18 20:39:15,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:15,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:15,988 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:15,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 20:39:15,988 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:15,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:15,989 INFO L85 PathProgramCache]: Analyzing trace with hash -4990735, now seen corresponding path program 1 times [2024-11-18 20:39:15,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:15,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441619652] [2024-11-18 20:39:15,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:15,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:29,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:29,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441619652] [2024-11-18 20:39:29,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441619652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:29,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:29,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 20:39:29,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307154232] [2024-11-18 20:39:29,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:29,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 20:39:29,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:29,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 20:39:29,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-18 20:39:29,234 INFO L87 Difference]: Start difference. First operand 295 states and 471 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:32,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:32,729 INFO L93 Difference]: Finished difference Result 629 states and 1005 transitions. [2024-11-18 20:39:32,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 20:39:32,730 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-18 20:39:32,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:32,735 INFO L225 Difference]: With dead ends: 629 [2024-11-18 20:39:32,735 INFO L226 Difference]: Without dead ends: 454 [2024-11-18 20:39:32,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2024-11-18 20:39:32,737 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 923 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:32,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 1040 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-18 20:39:32,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-18 20:39:32,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 295. [2024-11-18 20:39:32,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 191 states have (on average 1.418848167539267) internal successors, (271), 192 states have internal predecessors, (271), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:39:32,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 471 transitions. [2024-11-18 20:39:32,764 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 471 transitions. Word has length 295 [2024-11-18 20:39:32,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:32,765 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 471 transitions. [2024-11-18 20:39:32,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:32,765 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 471 transitions. [2024-11-18 20:39:32,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:32,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:32,766 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:32,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 20:39:32,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:32,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:32,767 INFO L85 PathProgramCache]: Analyzing trace with hash -570078793, now seen corresponding path program 1 times [2024-11-18 20:39:32,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:32,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207802864] [2024-11-18 20:39:32,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:32,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:33,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:33,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207802864] [2024-11-18 20:39:33,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207802864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:33,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:33,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 20:39:33,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747942739] [2024-11-18 20:39:33,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:33,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 20:39:33,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:33,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 20:39:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 20:39:33,268 INFO L87 Difference]: Start difference. First operand 295 states and 471 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:33,793 INFO L93 Difference]: Finished difference Result 552 states and 884 transitions. [2024-11-18 20:39:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 20:39:33,793 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 295 [2024-11-18 20:39:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:33,795 INFO L225 Difference]: With dead ends: 552 [2024-11-18 20:39:33,795 INFO L226 Difference]: Without dead ends: 377 [2024-11-18 20:39:33,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-18 20:39:33,796 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 183 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:33,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 815 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 20:39:33,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-18 20:39:33,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 297. [2024-11-18 20:39:33,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 193 states have (on average 1.4145077720207253) internal successors, (273), 194 states have internal predecessors, (273), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:39:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 473 transitions. [2024-11-18 20:39:33,823 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 473 transitions. Word has length 295 [2024-11-18 20:39:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:33,824 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 473 transitions. [2024-11-18 20:39:33,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 7 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:33,824 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 473 transitions. [2024-11-18 20:39:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:33,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:33,825 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:33,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 20:39:33,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:33,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:33,826 INFO L85 PathProgramCache]: Analyzing trace with hash -992780619, now seen corresponding path program 1 times [2024-11-18 20:39:33,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631710344] [2024-11-18 20:39:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:33,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:41,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:41,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:41,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631710344] [2024-11-18 20:39:41,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631710344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:41,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:41,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 20:39:41,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15343542] [2024-11-18 20:39:41,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:41,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 20:39:41,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:41,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 20:39:41,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 20:39:41,555 INFO L87 Difference]: Start difference. First operand 297 states and 473 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:43,030 INFO L93 Difference]: Finished difference Result 617 states and 984 transitions. [2024-11-18 20:39:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 20:39:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 295 [2024-11-18 20:39:43,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:43,033 INFO L225 Difference]: With dead ends: 617 [2024-11-18 20:39:43,033 INFO L226 Difference]: Without dead ends: 442 [2024-11-18 20:39:43,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-18 20:39:43,035 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 420 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:43,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 930 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 20:39:43,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-18 20:39:43,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 298. [2024-11-18 20:39:43,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 194 states have (on average 1.4175257731958764) internal successors, (275), 195 states have internal predecessors, (275), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:39:43,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 475 transitions. [2024-11-18 20:39:43,065 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 475 transitions. Word has length 295 [2024-11-18 20:39:43,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:43,066 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 475 transitions. [2024-11-18 20:39:43,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-11-18 20:39:43,066 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 475 transitions. [2024-11-18 20:39:43,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-18 20:39:43,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:43,068 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:43,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 20:39:43,068 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:43,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:43,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1810429069, now seen corresponding path program 1 times [2024-11-18 20:39:43,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:43,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926879793] [2024-11-18 20:39:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:43,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:39:53,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:39:53,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:39:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926879793] [2024-11-18 20:39:53,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926879793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:39:53,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:39:53,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 20:39:53,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603217787] [2024-11-18 20:39:53,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:39:53,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 20:39:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:39:53,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 20:39:53,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-18 20:39:53,319 INFO L87 Difference]: Start difference. First operand 298 states and 475 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:39:55,682 INFO L93 Difference]: Finished difference Result 685 states and 1098 transitions. [2024-11-18 20:39:55,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-18 20:39:55,683 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 295 [2024-11-18 20:39:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:39:55,686 INFO L225 Difference]: With dead ends: 685 [2024-11-18 20:39:55,686 INFO L226 Difference]: Without dead ends: 481 [2024-11-18 20:39:55,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2024-11-18 20:39:55,687 INFO L432 NwaCegarLoop]: 205 mSDtfsCounter, 604 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 20:39:55,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1328 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 20:39:55,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2024-11-18 20:39:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 296. [2024-11-18 20:39:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 192 states have (on average 1.421875) internal successors, (273), 193 states have internal predecessors, (273), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:39:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 473 transitions. [2024-11-18 20:39:55,733 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 473 transitions. Word has length 295 [2024-11-18 20:39:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:39:55,734 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 473 transitions. [2024-11-18 20:39:55,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:39:55,734 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 473 transitions. [2024-11-18 20:39:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-18 20:39:55,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:39:55,736 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:39:55,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 20:39:55,736 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:39:55,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:39:55,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1014062877, now seen corresponding path program 1 times [2024-11-18 20:39:55,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:39:55,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434831335] [2024-11-18 20:39:55,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:39:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:39:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:40:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:40:06,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:40:06,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434831335] [2024-11-18 20:40:06,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434831335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:40:06,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:40:06,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 20:40:06,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685726376] [2024-11-18 20:40:06,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:40:06,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 20:40:06,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:40:06,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 20:40:06,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-18 20:40:06,317 INFO L87 Difference]: Start difference. First operand 296 states and 473 transitions. Second operand has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:40:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:40:08,528 INFO L93 Difference]: Finished difference Result 927 states and 1498 transitions. [2024-11-18 20:40:08,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 20:40:08,529 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 296 [2024-11-18 20:40:08,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:40:08,532 INFO L225 Difference]: With dead ends: 927 [2024-11-18 20:40:08,532 INFO L226 Difference]: Without dead ends: 723 [2024-11-18 20:40:08,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2024-11-18 20:40:08,533 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1519 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1171 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 20:40:08,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1171 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 20:40:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2024-11-18 20:40:08,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 301. [2024-11-18 20:40:08,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 197 states have (on average 1.4263959390862944) internal successors, (281), 198 states have internal predecessors, (281), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:40:08,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 481 transitions. [2024-11-18 20:40:08,562 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 481 transitions. Word has length 296 [2024-11-18 20:40:08,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:40:08,562 INFO L471 AbstractCegarLoop]: Abstraction has 301 states and 481 transitions. [2024-11-18 20:40:08,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.933333333333333) internal successors, (59), 15 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:40:08,562 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 481 transitions. [2024-11-18 20:40:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-18 20:40:08,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:40:08,564 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:08,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 20:40:08,564 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:40:08,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:40:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1591960677, now seen corresponding path program 1 times [2024-11-18 20:40:08,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:40:08,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493740717] [2024-11-18 20:40:08,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:40:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:40:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:40:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-18 20:40:16,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:40:16,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493740717] [2024-11-18 20:40:16,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493740717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:40:16,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:40:16,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-18 20:40:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60189893] [2024-11-18 20:40:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:40:16,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-18 20:40:16,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:40:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-18 20:40:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-18 20:40:16,318 INFO L87 Difference]: Start difference. First operand 301 states and 481 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:40:18,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:40:18,337 INFO L93 Difference]: Finished difference Result 755 states and 1217 transitions. [2024-11-18 20:40:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 20:40:18,338 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 296 [2024-11-18 20:40:18,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:40:18,342 INFO L225 Difference]: With dead ends: 755 [2024-11-18 20:40:18,342 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 20:40:18,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2024-11-18 20:40:18,343 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 1058 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 1210 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 20:40:18,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 1210 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 20:40:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 20:40:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 328. [2024-11-18 20:40:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 224 states have (on average 1.4598214285714286) internal successors, (327), 225 states have internal predecessors, (327), 100 states have call successors, (100), 3 states have call predecessors, (100), 3 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-18 20:40:18,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 527 transitions. [2024-11-18 20:40:18,373 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 527 transitions. Word has length 296 [2024-11-18 20:40:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:40:18,374 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 527 transitions. [2024-11-18 20:40:18,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-11-18 20:40:18,374 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 527 transitions. [2024-11-18 20:40:18,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-18 20:40:18,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:40:18,375 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:40:18,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 20:40:18,376 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:40:18,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:40:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1831711327, now seen corresponding path program 1 times [2024-11-18 20:40:18,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:40:18,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024051598] [2024-11-18 20:40:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:40:18,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:40:18,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat