./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-44.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_variablewrapping_wrapper-s_file-44.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 f5e750e5fa316e30fef8e3158d304f9d418ce308f7b74e89da459ba726747abe --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:07:09,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:07:09,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:07:09,920 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:07:09,921 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:07:09,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:07:09,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:07:09,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:07:09,955 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:07:09,958 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:07:09,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:07:09,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:07:09,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:07:09,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:07:09,959 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:07:09,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:07:09,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:07:09,960 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:07:09,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:07:09,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:07:09,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:07:09,962 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:07:09,962 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:07:09,962 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:07:09,963 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:07:09,963 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:07:09,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:07:09,963 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:07:09,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:07:09,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:07:09,964 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:07:09,964 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:07:09,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:07:09,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:07:09,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:07:09,965 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:07:09,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:07:09,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:07:09,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:07:09,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:07:09,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:07:09,967 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:07:09,967 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5e750e5fa316e30fef8e3158d304f9d418ce308f7b74e89da459ba726747abe [2024-11-19 01:07:10,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:07:10,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:07:10,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:07:10,198 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:07:10,198 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:07:10,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-44.i [2024-11-19 01:07:11,417 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:07:11,582 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:07:11,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-44.i [2024-11-19 01:07:11,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d7ae1b3/f493dc5921164a5bba07881477a3c90c/FLAG0d8615e86 [2024-11-19 01:07:11,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16d7ae1b3/f493dc5921164a5bba07881477a3c90c [2024-11-19 01:07:11,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:07:11,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:07:11,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:07:11,606 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:07:11,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:07:11,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79909db9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11, skipping insertion in model container [2024-11-19 01:07:11,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:07:11,758 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_variablewrapping_wrapper-s_file-44.i[916,929] [2024-11-19 01:07:11,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:07:11,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:07:11,827 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_variablewrapping_wrapper-s_file-44.i[916,929] [2024-11-19 01:07:11,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:07:11,877 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:07:11,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11 WrapperNode [2024-11-19 01:07:11,878 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:07:11,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:07:11,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:07:11,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:07:11,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,935 INFO L138 Inliner]: procedures = 30, calls = 164, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2024-11-19 01:07:11,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:07:11,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:07:11,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:07:11,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:07:11,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,962 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:07:11,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:11,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:12,000 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:12,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:07:12,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:07:12,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:07:12,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:07:12,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (1/1) ... [2024-11-19 01:07:12,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:07:12,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:07:12,044 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) [2024-11-19 01:07:12,046 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 [2024-11-19 01:07:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:07:12,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:07:12,079 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:07:12,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:07:12,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:07:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:07:12,167 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:07:12,169 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:07:12,675 INFO L? ?]: Removed 120 outVars from TransFormulas that were not future-live. [2024-11-19 01:07:12,675 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:07:12,718 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:07:12,720 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:07:12,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:07:12 BoogieIcfgContainer [2024-11-19 01:07:12,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:07:12,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:07:12,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:07:12,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:07:12,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:07:11" (1/3) ... [2024-11-19 01:07:12,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f96842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:07:12, skipping insertion in model container [2024-11-19 01:07:12,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:07:11" (2/3) ... [2024-11-19 01:07:12,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f96842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:07:12, skipping insertion in model container [2024-11-19 01:07:12,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:07:12" (3/3) ... [2024-11-19 01:07:12,731 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-44.i [2024-11-19 01:07:12,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:07:12,744 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:07:12,799 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:07:12,804 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;@49378877, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:07:12,805 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:07:12,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 94 states have (on average 1.3829787234042554) internal successors, (130), 95 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:12,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:07:12,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:12,823 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:12,824 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:12,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:12,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1924656963, now seen corresponding path program 1 times [2024-11-19 01:07:12,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:12,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532902427] [2024-11-19 01:07:12,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:12,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-19 01:07:13,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:13,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532902427] [2024-11-19 01:07:13,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532902427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:07:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433763625] [2024-11-19 01:07:13,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:13,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:07:13,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:07:13,170 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) [2024-11-19 01:07:13,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:07:13,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:13,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:07:13,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:07:13,403 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-19 01:07:13,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:07:13,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433763625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:13,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:07:13,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:07:13,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788493734] [2024-11-19 01:07:13,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:13,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:07:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:13,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:07:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:07:13,430 INFO L87 Difference]: Start difference. First operand has 118 states, 94 states have (on average 1.3829787234042554) internal successors, (130), 95 states have internal predecessors, (130), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:13,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:13,455 INFO L93 Difference]: Finished difference Result 229 states and 359 transitions. [2024-11-19 01:07:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:07:13,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2024-11-19 01:07:13,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:13,465 INFO L225 Difference]: With dead ends: 229 [2024-11-19 01:07:13,466 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 01:07:13,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:07:13,474 INFO L432 NwaCegarLoop]: 165 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, 165 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 [2024-11-19 01:07:13,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:07:13,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 01:07:13,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2024-11-19 01:07:13,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 91 states have internal predecessors, (123), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:13,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 165 transitions. [2024-11-19 01:07:13,527 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 165 transitions. Word has length 159 [2024-11-19 01:07:13,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:13,527 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 165 transitions. [2024-11-19 01:07:13,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:13,528 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2024-11-19 01:07:13,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:07:13,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:13,531 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:13,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 01:07:13,732 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 [2024-11-19 01:07:13,732 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:13,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:13,733 INFO L85 PathProgramCache]: Analyzing trace with hash -781629009, now seen corresponding path program 1 times [2024-11-19 01:07:13,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:13,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570181051] [2024-11-19 01:07:13,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:13,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:14,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:14,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570181051] [2024-11-19 01:07:14,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570181051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:14,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:14,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:07:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136622001] [2024-11-19 01:07:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:14,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:07:14,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:14,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:07:14,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:14,042 INFO L87 Difference]: Start difference. First operand 114 states and 165 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:14,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:14,077 INFO L93 Difference]: Finished difference Result 227 states and 330 transitions. [2024-11-19 01:07:14,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:07:14,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 159 [2024-11-19 01:07:14,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:14,080 INFO L225 Difference]: With dead ends: 227 [2024-11-19 01:07:14,080 INFO L226 Difference]: Without dead ends: 116 [2024-11-19 01:07:14,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:14,081 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:14,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 478 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:07:14,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-19 01:07:14,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2024-11-19 01:07:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 93 states have (on average 1.3440860215053763) internal successors, (125), 93 states have internal predecessors, (125), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:14,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 167 transitions. [2024-11-19 01:07:14,101 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 167 transitions. Word has length 159 [2024-11-19 01:07:14,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:14,103 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 167 transitions. [2024-11-19 01:07:14,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:14,103 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 167 transitions. [2024-11-19 01:07:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:07:14,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:14,106 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:14,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:07:14,107 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:14,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:14,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1483228883, now seen corresponding path program 1 times [2024-11-19 01:07:14,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:14,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891890835] [2024-11-19 01:07:14,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:14,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:14,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:14,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891890835] [2024-11-19 01:07:14,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891890835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:14,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:14,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:07:14,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991917331] [2024-11-19 01:07:14,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:14,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:07:14,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:07:14,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:14,286 INFO L87 Difference]: Start difference. First operand 116 states and 167 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:14,319 INFO L93 Difference]: Finished difference Result 232 states and 335 transitions. [2024-11-19 01:07:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:07:14,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 159 [2024-11-19 01:07:14,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:14,322 INFO L225 Difference]: With dead ends: 232 [2024-11-19 01:07:14,323 INFO L226 Difference]: Without dead ends: 119 [2024-11-19 01:07:14,324 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:14,325 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:14,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 477 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:07:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-19 01:07:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 118. [2024-11-19 01:07:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 95 states have (on average 1.3368421052631578) internal successors, (127), 95 states have internal predecessors, (127), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:14,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 169 transitions. [2024-11-19 01:07:14,335 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 169 transitions. Word has length 159 [2024-11-19 01:07:14,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:14,336 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 169 transitions. [2024-11-19 01:07:14,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:14,336 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 169 transitions. [2024-11-19 01:07:14,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-19 01:07:14,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:14,341 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:14,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:07:14,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:14,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1481381841, now seen corresponding path program 1 times [2024-11-19 01:07:14,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:14,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959802289] [2024-11-19 01:07:14,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:14,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:14,829 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:14,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:14,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959802289] [2024-11-19 01:07:14,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959802289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:14,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:14,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:07:14,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171435789] [2024-11-19 01:07:14,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:14,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:07:14,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:14,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:07:14,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:07:14,832 INFO L87 Difference]: Start difference. First operand 118 states and 169 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:15,083 INFO L93 Difference]: Finished difference Result 287 states and 412 transitions. [2024-11-19 01:07:15,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:07:15,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 159 [2024-11-19 01:07:15,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:15,085 INFO L225 Difference]: With dead ends: 287 [2024-11-19 01:07:15,085 INFO L226 Difference]: Without dead ends: 172 [2024-11-19 01:07:15,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:07:15,086 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 63 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:15,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 555 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:07:15,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-19 01:07:15,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 136. [2024-11-19 01:07:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 113 states have internal predecessors, (154), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 196 transitions. [2024-11-19 01:07:15,094 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 196 transitions. Word has length 159 [2024-11-19 01:07:15,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:15,094 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 196 transitions. [2024-11-19 01:07:15,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:15,095 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 196 transitions. [2024-11-19 01:07:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-19 01:07:15,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:15,096 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:15,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:07:15,096 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:15,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:15,097 INFO L85 PathProgramCache]: Analyzing trace with hash -390938977, now seen corresponding path program 1 times [2024-11-19 01:07:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:15,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160431108] [2024-11-19 01:07:15,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:15,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:17,073 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:17,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:17,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160431108] [2024-11-19 01:07:17,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160431108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:17,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:17,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:07:17,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700541266] [2024-11-19 01:07:17,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:17,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:07:17,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:17,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:07:17,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:07:17,078 INFO L87 Difference]: Start difference. First operand 136 states and 196 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:17,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:17,802 INFO L93 Difference]: Finished difference Result 314 states and 448 transitions. [2024-11-19 01:07:17,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:07:17,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 160 [2024-11-19 01:07:17,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:17,804 INFO L225 Difference]: With dead ends: 314 [2024-11-19 01:07:17,805 INFO L226 Difference]: Without dead ends: 181 [2024-11-19 01:07:17,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:07:17,807 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 70 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:17,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1013 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 01:07:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-19 01:07:17,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2024-11-19 01:07:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 151 states have (on average 1.3576158940397351) internal successors, (205), 152 states have internal predecessors, (205), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:07:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 251 transitions. [2024-11-19 01:07:17,826 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 251 transitions. Word has length 160 [2024-11-19 01:07:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:17,827 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 251 transitions. [2024-11-19 01:07:17,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 251 transitions. [2024-11-19 01:07:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-19 01:07:17,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:17,829 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:17,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:07:17,830 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:17,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:17,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1793675834, now seen corresponding path program 1 times [2024-11-19 01:07:17,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:17,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396739070] [2024-11-19 01:07:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:17,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:18,021 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 24 proven. 36 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-19 01:07:18,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:18,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396739070] [2024-11-19 01:07:18,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396739070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:07:18,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964564884] [2024-11-19 01:07:18,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:18,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:07:18,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:07:18,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:07:18,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:07:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:18,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 01:07:18,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:07:18,236 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:18,238 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:07:18,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964564884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:18,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:07:18,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-19 01:07:18,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698062665] [2024-11-19 01:07:18,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:18,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:07:18,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:18,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:07:18,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:07:18,241 INFO L87 Difference]: Start difference. First operand 177 states and 251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:18,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:18,267 INFO L93 Difference]: Finished difference Result 357 states and 507 transitions. [2024-11-19 01:07:18,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:07:18,267 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 161 [2024-11-19 01:07:18,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:18,270 INFO L225 Difference]: With dead ends: 357 [2024-11-19 01:07:18,270 INFO L226 Difference]: Without dead ends: 183 [2024-11-19 01:07:18,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:07:18,271 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:18,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 631 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:07:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-19 01:07:18,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-19 01:07:18,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 157 states have (on average 1.3439490445859872) internal successors, (211), 158 states have internal predecessors, (211), 23 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 01:07:18,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 257 transitions. [2024-11-19 01:07:18,279 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 257 transitions. Word has length 161 [2024-11-19 01:07:18,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:18,279 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 257 transitions. [2024-11-19 01:07:18,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 257 transitions. [2024-11-19 01:07:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 01:07:18,281 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:18,281 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:18,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 01:07:18,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-19 01:07:18,483 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:18,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:18,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1401103225, now seen corresponding path program 1 times [2024-11-19 01:07:18,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:18,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684033742] [2024-11-19 01:07:18,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:18,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:19,969 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:19,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:19,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684033742] [2024-11-19 01:07:19,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684033742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:19,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:19,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:07:19,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745491886] [2024-11-19 01:07:19,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:19,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:07:19,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:19,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:07:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:07:19,971 INFO L87 Difference]: Start difference. First operand 183 states and 257 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:20,407 INFO L93 Difference]: Finished difference Result 364 states and 507 transitions. [2024-11-19 01:07:20,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:07:20,409 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 163 [2024-11-19 01:07:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:20,410 INFO L225 Difference]: With dead ends: 364 [2024-11-19 01:07:20,410 INFO L226 Difference]: Without dead ends: 184 [2024-11-19 01:07:20,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:07:20,411 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 64 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 609 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:20,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 609 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 01:07:20,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-19 01:07:20,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 143. [2024-11-19 01:07:20,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.3277310924369747) internal successors, (158), 119 states have internal predecessors, (158), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:20,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 200 transitions. [2024-11-19 01:07:20,422 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 200 transitions. Word has length 163 [2024-11-19 01:07:20,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:20,423 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 200 transitions. [2024-11-19 01:07:20,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:20,423 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 200 transitions. [2024-11-19 01:07:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-19 01:07:20,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:20,424 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:20,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:07:20,425 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:20,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:20,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2045035359, now seen corresponding path program 1 times [2024-11-19 01:07:20,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:20,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932210946] [2024-11-19 01:07:20,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:20,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:20,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:20,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932210946] [2024-11-19 01:07:20,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932210946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:20,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:20,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:07:20,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771293754] [2024-11-19 01:07:20,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:20,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:07:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:07:20,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:07:20,525 INFO L87 Difference]: Start difference. First operand 143 states and 200 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:20,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:20,537 INFO L93 Difference]: Finished difference Result 283 states and 397 transitions. [2024-11-19 01:07:20,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:07:20,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 163 [2024-11-19 01:07:20,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:20,538 INFO L225 Difference]: With dead ends: 283 [2024-11-19 01:07:20,538 INFO L226 Difference]: Without dead ends: 143 [2024-11-19 01:07:20,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:07:20,540 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 0 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:20,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 322 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:07:20,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-19 01:07:20,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-19 01:07:20,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 119 states have (on average 1.319327731092437) internal successors, (157), 119 states have internal predecessors, (157), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:07:20,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 199 transitions. [2024-11-19 01:07:20,549 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 199 transitions. Word has length 163 [2024-11-19 01:07:20,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:20,551 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 199 transitions. [2024-11-19 01:07:20,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:20,551 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 199 transitions. [2024-11-19 01:07:20,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-19 01:07:20,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:20,553 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:20,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:07:20,555 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:20,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:20,555 INFO L85 PathProgramCache]: Analyzing trace with hash 206240503, now seen corresponding path program 1 times [2024-11-19 01:07:20,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:20,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29507106] [2024-11-19 01:07:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:20,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:21,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:21,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29507106] [2024-11-19 01:07:21,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29507106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:21,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:21,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:07:21,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058156696] [2024-11-19 01:07:21,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:21,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:07:21,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:21,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:07:21,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:21,603 INFO L87 Difference]: Start difference. First operand 143 states and 199 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:21,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:21,782 INFO L93 Difference]: Finished difference Result 423 states and 591 transitions. [2024-11-19 01:07:21,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:07:21,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 164 [2024-11-19 01:07:21,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:21,784 INFO L225 Difference]: With dead ends: 423 [2024-11-19 01:07:21,784 INFO L226 Difference]: Without dead ends: 283 [2024-11-19 01:07:21,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:07:21,785 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 97 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:21,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 284 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:07:21,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-19 01:07:21,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2024-11-19 01:07:21,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 222 states have (on average 1.3063063063063063) internal successors, (290), 222 states have internal predecessors, (290), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:07:21,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 374 transitions. [2024-11-19 01:07:21,797 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 374 transitions. Word has length 164 [2024-11-19 01:07:21,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:21,797 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 374 transitions. [2024-11-19 01:07:21,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:21,798 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 374 transitions. [2024-11-19 01:07:21,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-19 01:07:21,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:21,799 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:21,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:07:21,799 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:21,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:21,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1670063198, now seen corresponding path program 1 times [2024-11-19 01:07:21,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:21,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713438009] [2024-11-19 01:07:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:21,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:21,905 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:21,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:21,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713438009] [2024-11-19 01:07:21,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713438009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:21,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:21,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:07:21,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91622717] [2024-11-19 01:07:21,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:21,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:07:21,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:21,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:07:21,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:07:21,907 INFO L87 Difference]: Start difference. First operand 269 states and 374 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:22,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:22,034 INFO L93 Difference]: Finished difference Result 537 states and 747 transitions. [2024-11-19 01:07:22,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:07:22,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 165 [2024-11-19 01:07:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:22,037 INFO L225 Difference]: With dead ends: 537 [2024-11-19 01:07:22,037 INFO L226 Difference]: Without dead ends: 271 [2024-11-19 01:07:22,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:07:22,038 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 2 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:22,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 413 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 01:07:22,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-19 01:07:22,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 269. [2024-11-19 01:07:22,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 222 states have (on average 1.2882882882882882) internal successors, (286), 222 states have internal predecessors, (286), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-19 01:07:22,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 370 transitions. [2024-11-19 01:07:22,049 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 370 transitions. Word has length 165 [2024-11-19 01:07:22,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:22,049 INFO L471 AbstractCegarLoop]: Abstraction has 269 states and 370 transitions. [2024-11-19 01:07:22,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:22,050 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 370 transitions. [2024-11-19 01:07:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 01:07:22,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:22,051 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:22,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:07:22,051 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:22,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:22,052 INFO L85 PathProgramCache]: Analyzing trace with hash 694461997, now seen corresponding path program 1 times [2024-11-19 01:07:22,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:22,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798246939] [2024-11-19 01:07:22,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:22,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:23,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:23,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798246939] [2024-11-19 01:07:23,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798246939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:23,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:23,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:07:23,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067674020] [2024-11-19 01:07:23,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:23,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:07:23,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:07:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:07:23,312 INFO L87 Difference]: Start difference. First operand 269 states and 370 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:23,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:23,984 INFO L93 Difference]: Finished difference Result 692 states and 943 transitions. [2024-11-19 01:07:23,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:07:23,985 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) Word has length 166 [2024-11-19 01:07:23,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:23,987 INFO L225 Difference]: With dead ends: 692 [2024-11-19 01:07:23,987 INFO L226 Difference]: Without dead ends: 426 [2024-11-19 01:07:23,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:07:23,989 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 78 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:23,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1175 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:07:23,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-19 01:07:24,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 417. [2024-11-19 01:07:24,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 350 states have (on average 1.28) internal successors, (448), 352 states have internal predecessors, (448), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:07:24,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 564 transitions. [2024-11-19 01:07:24,010 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 564 transitions. Word has length 166 [2024-11-19 01:07:24,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:24,011 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 564 transitions. [2024-11-19 01:07:24,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 9 states have internal predecessors, (64), 2 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-19 01:07:24,011 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 564 transitions. [2024-11-19 01:07:24,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 01:07:24,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:24,012 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:24,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:07:24,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:24,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:24,013 INFO L85 PathProgramCache]: Analyzing trace with hash 835010607, now seen corresponding path program 1 times [2024-11-19 01:07:24,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:24,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457071513] [2024-11-19 01:07:24,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:24,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:26,617 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2024-11-19 01:07:26,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:26,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457071513] [2024-11-19 01:07:26,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457071513] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:07:26,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382565983] [2024-11-19 01:07:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:26,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:07:26,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:07:26,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:07:26,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:07:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:26,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-19 01:07:26,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:07:26,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:26,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:27,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:27,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-19 01:07:27,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:07:27,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 103 treesize of output 57 [2024-11-19 01:07:27,327 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:07:27,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 103 treesize of output 75 [2024-11-19 01:07:27,498 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 01:07:27,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 126 treesize of output 42 [2024-11-19 01:07:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:27,563 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:07:27,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382565983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:27,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:07:27,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2024-11-19 01:07:27,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286469942] [2024-11-19 01:07:27,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:27,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:07:27,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:27,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:07:27,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2024-11-19 01:07:27,566 INFO L87 Difference]: Start difference. First operand 417 states and 564 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:28,792 INFO L93 Difference]: Finished difference Result 1091 states and 1465 transitions. [2024-11-19 01:07:28,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:07:28,793 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 166 [2024-11-19 01:07:28,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:28,796 INFO L225 Difference]: With dead ends: 1091 [2024-11-19 01:07:28,796 INFO L226 Difference]: Without dead ends: 677 [2024-11-19 01:07:28,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 170 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:07:28,798 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 139 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:28,798 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1048 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 01:07:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-19 01:07:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 455. [2024-11-19 01:07:28,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 388 states have (on average 1.2938144329896908) internal successors, (502), 390 states have internal predecessors, (502), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:07:28,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 618 transitions. [2024-11-19 01:07:28,818 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 618 transitions. Word has length 166 [2024-11-19 01:07:28,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:28,819 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 618 transitions. [2024-11-19 01:07:28,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 9 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:28,819 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 618 transitions. [2024-11-19 01:07:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 01:07:28,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:28,820 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:28,840 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:07:29,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:07:29,022 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:29,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:29,022 INFO L85 PathProgramCache]: Analyzing trace with hash -176106643, now seen corresponding path program 1 times [2024-11-19 01:07:29,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:29,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105339149] [2024-11-19 01:07:29,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:29,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:07:30,121 INFO L134 CoverageAnalysis]: Checked inductivity of 840 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-19 01:07:30,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:07:30,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105339149] [2024-11-19 01:07:30,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105339149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:07:30,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:07:30,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:07:30,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073154400] [2024-11-19 01:07:30,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:07:30,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:07:30,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:07:30,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:07:30,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:07:30,124 INFO L87 Difference]: Start difference. First operand 455 states and 618 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:07:30,421 INFO L93 Difference]: Finished difference Result 1119 states and 1514 transitions. [2024-11-19 01:07:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:07:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 166 [2024-11-19 01:07:30,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:07:30,424 INFO L225 Difference]: With dead ends: 1119 [2024-11-19 01:07:30,424 INFO L226 Difference]: Without dead ends: 667 [2024-11-19 01:07:30,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:07:30,425 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 60 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:07:30,425 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 470 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:07:30,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-19 01:07:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 489. [2024-11-19 01:07:30,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 422 states have (on average 1.2890995260663507) internal successors, (544), 424 states have internal predecessors, (544), 58 states have call successors, (58), 8 states have call predecessors, (58), 8 states have return successors, (58), 56 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-19 01:07:30,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 660 transitions. [2024-11-19 01:07:30,443 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 660 transitions. Word has length 166 [2024-11-19 01:07:30,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:07:30,443 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 660 transitions. [2024-11-19 01:07:30,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 1 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2024-11-19 01:07:30,443 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 660 transitions. [2024-11-19 01:07:30,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-19 01:07:30,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:07:30,444 INFO L215 NwaCegarLoop]: trace histogram [21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:07:30,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 01:07:30,445 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:07:30,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:07:30,445 INFO L85 PathProgramCache]: Analyzing trace with hash -753337295, now seen corresponding path program 1 times [2024-11-19 01:07:30,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:07:30,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627662583] [2024-11-19 01:07:30,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:07:30,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:07:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat