./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/eca-rers2012/Problem14_label20.c -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 cc39b25e5d6bf00ba7a149cc452827f6c69f8a46e091e8e5858372a0b5fafb1a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:04:49,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:04:49,874 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:04:49,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:04:49,879 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:04:49,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:04:49,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:04:49,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:04:49,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:04:49,899 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:04:49,899 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:04:49,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:04:49,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:04:49,900 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:04:49,901 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:04:49,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:04:49,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:04:49,902 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:04:49,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:04:49,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:04:49,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:04:49,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:04:49,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:04:49,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:04:49,904 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:04:49,904 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:04:49,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:04:49,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:04:49,905 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:04:49,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:04:49,905 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:04:49,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:04:49,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:04:49,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:04:49,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:04:49,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:04:49,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:04:49,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:04:49,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:04:49,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:04:49,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:04:49,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:04:49,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc39b25e5d6bf00ba7a149cc452827f6c69f8a46e091e8e5858372a0b5fafb1a [2024-11-16 04:04:50,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:04:50,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:04:50,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:04:50,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:04:50,160 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:04:50,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label20.c [2024-11-16 04:04:51,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:04:51,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:04:51,806 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label20.c [2024-11-16 04:04:51,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2924109f9/775dbd16786549669ed5529eb5b1e9b2/FLAGaf9085048 [2024-11-16 04:04:51,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2924109f9/775dbd16786549669ed5529eb5b1e9b2 [2024-11-16 04:04:51,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:04:51,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:04:51,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:04:51,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:04:51,843 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:04:51,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:04:51" (1/1) ... [2024-11-16 04:04:51,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64560368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:51, skipping insertion in model container [2024-11-16 04:04:51,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:04:51" (1/1) ... [2024-11-16 04:04:51,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:04:52,051 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/eca-rers2012/Problem14_label20.c[6130,6143] [2024-11-16 04:04:52,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:04:52,217 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:04:52,261 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/eca-rers2012/Problem14_label20.c[6130,6143] [2024-11-16 04:04:52,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:04:52,461 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:04:52,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52 WrapperNode [2024-11-16 04:04:52,470 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:04:52,472 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:04:52,472 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:04:52,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:04:52,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,523 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,633 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-16 04:04:52,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:04:52,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:04:52,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:04:52,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:04:52,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,687 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:04:52,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,711 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,715 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:04:52,729 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:04:52,729 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:04:52,729 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:04:52,730 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (1/1) ... [2024-11-16 04:04:52,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:04:52,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:04:52,754 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) [2024-11-16 04:04:52,763 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 [2024-11-16 04:04:52,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:04:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:04:52,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:04:52,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:04:52,853 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:04:52,855 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:04:53,707 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-16 04:04:53,707 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:04:53,732 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:04:53,732 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:04:53,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:04:53 BoogieIcfgContainer [2024-11-16 04:04:53,735 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:04:53,737 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:04:53,737 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:04:53,739 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:04:53,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:04:51" (1/3) ... [2024-11-16 04:04:53,740 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45788f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:04:53, skipping insertion in model container [2024-11-16 04:04:53,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:04:52" (2/3) ... [2024-11-16 04:04:53,742 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45788f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:04:53, skipping insertion in model container [2024-11-16 04:04:53,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:04:53" (3/3) ... [2024-11-16 04:04:53,744 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label20.c [2024-11-16 04:04:53,756 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:04:53,756 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:04:53,815 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:04:53,822 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;@3a0828ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:04:53,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:04:53,827 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:53,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 04:04:53,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:53,835 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:53,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:53,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:53,840 INFO L85 PathProgramCache]: Analyzing trace with hash -868719481, now seen corresponding path program 1 times [2024-11-16 04:04:53,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:53,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758132753] [2024-11-16 04:04:53,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:53,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:54,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:54,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:54,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758132753] [2024-11-16 04:04:54,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758132753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:54,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:54,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:04:54,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519044353] [2024-11-16 04:04:54,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:54,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:54,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:54,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:54,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:54,161 INFO L87 Difference]: Start difference. First operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:55,012 INFO L93 Difference]: Finished difference Result 675 states and 1206 transitions. [2024-11-16 04:04:55,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:55,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2024-11-16 04:04:55,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:55,028 INFO L225 Difference]: With dead ends: 675 [2024-11-16 04:04:55,028 INFO L226 Difference]: Without dead ends: 363 [2024-11-16 04:04:55,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:55,036 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 146 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:55,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 81 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:04:55,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-16 04:04:55,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-16 04:04:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.632596685082873) internal successors, (591), 362 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 591 transitions. [2024-11-16 04:04:55,081 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 591 transitions. Word has length 62 [2024-11-16 04:04:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:55,081 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 591 transitions. [2024-11-16 04:04:55,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,082 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 591 transitions. [2024-11-16 04:04:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-16 04:04:55,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:55,085 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:55,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:04:55,085 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:55,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:55,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1931918723, now seen corresponding path program 1 times [2024-11-16 04:04:55,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:55,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575799081] [2024-11-16 04:04:55,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:55,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:55,237 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:55,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:55,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575799081] [2024-11-16 04:04:55,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575799081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:55,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:55,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:04:55,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598668329] [2024-11-16 04:04:55,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:55,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:55,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:55,241 INFO L87 Difference]: Start difference. First operand 363 states and 591 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:55,856 INFO L93 Difference]: Finished difference Result 1085 states and 1769 transitions. [2024-11-16 04:04:55,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:55,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2024-11-16 04:04:55,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:55,859 INFO L225 Difference]: With dead ends: 1085 [2024-11-16 04:04:55,859 INFO L226 Difference]: Without dead ends: 724 [2024-11-16 04:04:55,860 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:55,861 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 135 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:55,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 92 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:04:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2024-11-16 04:04:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 721. [2024-11-16 04:04:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 1.4194444444444445) internal successors, (1022), 720 states have internal predecessors, (1022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1022 transitions. [2024-11-16 04:04:55,891 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1022 transitions. Word has length 128 [2024-11-16 04:04:55,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:55,891 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1022 transitions. [2024-11-16 04:04:55,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1022 transitions. [2024-11-16 04:04:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 04:04:55,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:55,895 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:55,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:04:55,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:55,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:55,896 INFO L85 PathProgramCache]: Analyzing trace with hash -222061606, now seen corresponding path program 1 times [2024-11-16 04:04:55,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:55,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274517088] [2024-11-16 04:04:55,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:55,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:56,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274517088] [2024-11-16 04:04:56,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274517088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:56,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:56,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:04:56,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997934136] [2024-11-16 04:04:56,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:56,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:56,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:56,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:56,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:56,054 INFO L87 Difference]: Start difference. First operand 721 states and 1022 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:56,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:56,639 INFO L93 Difference]: Finished difference Result 1619 states and 2335 transitions. [2024-11-16 04:04:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-11-16 04:04:56,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:56,643 INFO L225 Difference]: With dead ends: 1619 [2024-11-16 04:04:56,643 INFO L226 Difference]: Without dead ends: 900 [2024-11-16 04:04:56,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:56,645 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 126 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:56,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 60 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:04:56,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-16 04:04:56,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 900. [2024-11-16 04:04:56,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.3292547274749722) internal successors, (1195), 899 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:56,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1195 transitions. [2024-11-16 04:04:56,661 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1195 transitions. Word has length 129 [2024-11-16 04:04:56,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:56,661 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1195 transitions. [2024-11-16 04:04:56,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1195 transitions. [2024-11-16 04:04:56,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-16 04:04:56,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:56,665 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:56,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:04:56,665 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:56,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:56,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1216500679, now seen corresponding path program 1 times [2024-11-16 04:04:56,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:56,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93444792] [2024-11-16 04:04:56,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:56,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:56,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:56,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93444792] [2024-11-16 04:04:56,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93444792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:56,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:56,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:56,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518327155] [2024-11-16 04:04:56,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:56,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:04:56,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:56,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:04:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:04:56,879 INFO L87 Difference]: Start difference. First operand 900 states and 1195 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:57,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:57,998 INFO L93 Difference]: Finished difference Result 2159 states and 2797 transitions. [2024-11-16 04:04:57,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:04:57,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2024-11-16 04:04:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:58,005 INFO L225 Difference]: With dead ends: 2159 [2024-11-16 04:04:58,005 INFO L226 Difference]: Without dead ends: 1261 [2024-11-16 04:04:58,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:04:58,008 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 444 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:58,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 132 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-16 04:04:58,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1261 states. [2024-11-16 04:04:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1261 to 1258. [2024-11-16 04:04:58,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 1257 states have (on average 1.2553699284009547) internal successors, (1578), 1257 states have internal predecessors, (1578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:58,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1578 transitions. [2024-11-16 04:04:58,032 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1578 transitions. Word has length 132 [2024-11-16 04:04:58,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:58,033 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1578 transitions. [2024-11-16 04:04:58,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:58,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1578 transitions. [2024-11-16 04:04:58,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-16 04:04:58,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:58,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:58,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:04:58,036 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:58,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1426735945, now seen corresponding path program 1 times [2024-11-16 04:04:58,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:58,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779080631] [2024-11-16 04:04:58,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:58,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:58,248 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:58,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:58,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779080631] [2024-11-16 04:04:58,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779080631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:58,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:58,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:58,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388691897] [2024-11-16 04:04:58,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:58,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:04:58,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:58,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:04:58,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:04:58,254 INFO L87 Difference]: Start difference. First operand 1258 states and 1578 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:58,927 INFO L93 Difference]: Finished difference Result 2905 states and 3593 transitions. [2024-11-16 04:04:58,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:04:58,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2024-11-16 04:04:58,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:58,931 INFO L225 Difference]: With dead ends: 2905 [2024-11-16 04:04:58,931 INFO L226 Difference]: Without dead ends: 1619 [2024-11-16 04:04:58,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:04:58,934 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 113 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:58,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 129 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:04:58,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-16 04:04:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1616. [2024-11-16 04:04:58,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1615 states have (on average 1.1306501547987615) internal successors, (1826), 1615 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 1826 transitions. [2024-11-16 04:04:58,960 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 1826 transitions. Word has length 143 [2024-11-16 04:04:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:58,961 INFO L471 AbstractCegarLoop]: Abstraction has 1616 states and 1826 transitions. [2024-11-16 04:04:58,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:58,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 1826 transitions. [2024-11-16 04:04:58,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-16 04:04:58,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:58,963 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:58,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:04:58,964 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:58,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:58,965 INFO L85 PathProgramCache]: Analyzing trace with hash 24098385, now seen corresponding path program 1 times [2024-11-16 04:04:58,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:58,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937914737] [2024-11-16 04:04:58,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:04:59,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:59,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937914737] [2024-11-16 04:04:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937914737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:59,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:59,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188420401] [2024-11-16 04:04:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:59,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:04:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:04:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:04:59,186 INFO L87 Difference]: Start difference. First operand 1616 states and 1826 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:59,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:04:59,608 INFO L93 Difference]: Finished difference Result 3946 states and 4518 transitions. [2024-11-16 04:04:59,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:04:59,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2024-11-16 04:04:59,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:04:59,614 INFO L225 Difference]: With dead ends: 3946 [2024-11-16 04:04:59,614 INFO L226 Difference]: Without dead ends: 2332 [2024-11-16 04:04:59,616 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 [2024-11-16 04:04:59,617 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:04:59,618 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 79 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:04:59,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2332 states. [2024-11-16 04:04:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2332 to 2332. [2024-11-16 04:04:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.1123981123981124) internal successors, (2593), 2331 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2593 transitions. [2024-11-16 04:04:59,651 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2593 transitions. Word has length 238 [2024-11-16 04:04:59,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:04:59,652 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2593 transitions. [2024-11-16 04:04:59,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:04:59,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2593 transitions. [2024-11-16 04:04:59,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-11-16 04:04:59,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:04:59,656 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:04:59,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:04:59,656 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:04:59,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:04:59,656 INFO L85 PathProgramCache]: Analyzing trace with hash 884664144, now seen corresponding path program 1 times [2024-11-16 04:04:59,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:04:59,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806615368] [2024-11-16 04:04:59,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:04:59,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:04:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:04:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-16 04:04:59,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:04:59,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806615368] [2024-11-16 04:04:59,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806615368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:04:59,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:04:59,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:04:59,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605264536] [2024-11-16 04:04:59,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:04:59,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:04:59,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:04:59,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:04:59,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:04:59,911 INFO L87 Difference]: Start difference. First operand 2332 states and 2593 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:00,394 INFO L93 Difference]: Finished difference Result 4722 states and 5268 transitions. [2024-11-16 04:05:00,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:05:00,394 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2024-11-16 04:05:00,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:00,400 INFO L225 Difference]: With dead ends: 4722 [2024-11-16 04:05:00,400 INFO L226 Difference]: Without dead ends: 2511 [2024-11-16 04:05:00,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:00,404 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 142 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:00,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 23 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:05:00,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-16 04:05:00,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2332. [2024-11-16 04:05:00,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.0733590733590734) internal successors, (2502), 2331 states have internal predecessors, (2502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2502 transitions. [2024-11-16 04:05:00,460 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2502 transitions. Word has length 356 [2024-11-16 04:05:00,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:00,461 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2502 transitions. [2024-11-16 04:05:00,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:00,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2502 transitions. [2024-11-16 04:05:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-16 04:05:00,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:00,467 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:00,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:05:00,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:00,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:00,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1119461759, now seen corresponding path program 1 times [2024-11-16 04:05:00,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:00,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495562751] [2024-11-16 04:05:00,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:00,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:00,797 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:00,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:00,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495562751] [2024-11-16 04:05:00,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495562751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:00,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:00,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:00,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292669190] [2024-11-16 04:05:00,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:00,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:00,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:00,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:00,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:00,799 INFO L87 Difference]: Start difference. First operand 2332 states and 2502 transitions. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:01,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:01,375 INFO L93 Difference]: Finished difference Result 4841 states and 5261 transitions. [2024-11-16 04:05:01,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:01,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 452 [2024-11-16 04:05:01,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:01,381 INFO L225 Difference]: With dead ends: 4841 [2024-11-16 04:05:01,381 INFO L226 Difference]: Without dead ends: 2690 [2024-11-16 04:05:01,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:01,383 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:01,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 250 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:05:01,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-16 04:05:01,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2153. [2024-11-16 04:05:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2153 states, 2152 states have (on average 1.0729553903345725) internal successors, (2309), 2152 states have internal predecessors, (2309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:01,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2153 states to 2153 states and 2309 transitions. [2024-11-16 04:05:01,408 INFO L78 Accepts]: Start accepts. Automaton has 2153 states and 2309 transitions. Word has length 452 [2024-11-16 04:05:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:01,409 INFO L471 AbstractCegarLoop]: Abstraction has 2153 states and 2309 transitions. [2024-11-16 04:05:01,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states and 2309 transitions. [2024-11-16 04:05:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2024-11-16 04:05:01,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:01,413 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:01,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:05:01,413 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:01,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:01,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1002788356, now seen corresponding path program 1 times [2024-11-16 04:05:01,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:01,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721564602] [2024-11-16 04:05:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:01,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:01,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721564602] [2024-11-16 04:05:01,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721564602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:01,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:01,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:01,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698333055] [2024-11-16 04:05:01,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:01,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:01,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:01,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:01,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:01,662 INFO L87 Difference]: Start difference. First operand 2153 states and 2309 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:02,031 INFO L93 Difference]: Finished difference Result 4662 states and 5079 transitions. [2024-11-16 04:05:02,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:02,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 459 [2024-11-16 04:05:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:02,037 INFO L225 Difference]: With dead ends: 4662 [2024-11-16 04:05:02,037 INFO L226 Difference]: Without dead ends: 2690 [2024-11-16 04:05:02,039 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 [2024-11-16 04:05:02,039 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 113 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:02,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 225 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:02,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-16 04:05:02,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2332. [2024-11-16 04:05:02,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.081939081939082) internal successors, (2522), 2331 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2522 transitions. [2024-11-16 04:05:02,062 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2522 transitions. Word has length 459 [2024-11-16 04:05:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:02,062 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2522 transitions. [2024-11-16 04:05:02,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,062 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2522 transitions. [2024-11-16 04:05:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-16 04:05:02,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:02,068 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:02,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:05:02,068 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:02,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:02,069 INFO L85 PathProgramCache]: Analyzing trace with hash 237545473, now seen corresponding path program 1 times [2024-11-16 04:05:02,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:02,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899742658] [2024-11-16 04:05:02,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:02,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 875 backedges. 558 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899742658] [2024-11-16 04:05:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899742658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:02,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:02,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744962382] [2024-11-16 04:05:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:02,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:02,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:02,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:02,250 INFO L87 Difference]: Start difference. First operand 2332 states and 2522 transitions. Second operand has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:02,712 INFO L93 Difference]: Finished difference Result 5199 states and 5693 transitions. [2024-11-16 04:05:02,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:02,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2024-11-16 04:05:02,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:02,719 INFO L225 Difference]: With dead ends: 5199 [2024-11-16 04:05:02,719 INFO L226 Difference]: Without dead ends: 3048 [2024-11-16 04:05:02,721 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 [2024-11-16 04:05:02,722 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 75 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:02,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 53 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-16 04:05:02,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 3048. [2024-11-16 04:05:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3048 states, 3047 states have (on average 1.082047915982934) internal successors, (3297), 3047 states have internal predecessors, (3297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3048 states to 3048 states and 3297 transitions. [2024-11-16 04:05:02,754 INFO L78 Accepts]: Start accepts. Automaton has 3048 states and 3297 transitions. Word has length 500 [2024-11-16 04:05:02,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:02,754 INFO L471 AbstractCegarLoop]: Abstraction has 3048 states and 3297 transitions. [2024-11-16 04:05:02,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.66666666666667) internal successors, (290), 3 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:02,754 INFO L276 IsEmpty]: Start isEmpty. Operand 3048 states and 3297 transitions. [2024-11-16 04:05:02,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-16 04:05:02,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:02,757 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:02,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 04:05:02,757 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:02,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:02,758 INFO L85 PathProgramCache]: Analyzing trace with hash 923784546, now seen corresponding path program 1 times [2024-11-16 04:05:02,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:02,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802300081] [2024-11-16 04:05:02,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:02,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:03,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802300081] [2024-11-16 04:05:03,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802300081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:03,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:03,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 04:05:03,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356219320] [2024-11-16 04:05:03,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:03,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:05:03,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:03,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:05:03,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:03,117 INFO L87 Difference]: Start difference. First operand 3048 states and 3297 transitions. Second operand has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:03,748 INFO L93 Difference]: Finished difference Result 6452 states and 6992 transitions. [2024-11-16 04:05:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:05:03,748 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 537 [2024-11-16 04:05:03,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:03,757 INFO L225 Difference]: With dead ends: 6452 [2024-11-16 04:05:03,757 INFO L226 Difference]: Without dead ends: 3585 [2024-11-16 04:05:03,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:05:03,760 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 216 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:03,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 74 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:05:03,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3585 states. [2024-11-16 04:05:03,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3585 to 3227. [2024-11-16 04:05:03,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3226 states have (on average 1.0759454432734037) internal successors, (3471), 3226 states have internal predecessors, (3471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:03,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 3471 transitions. [2024-11-16 04:05:03,792 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 3471 transitions. Word has length 537 [2024-11-16 04:05:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:03,793 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 3471 transitions. [2024-11-16 04:05:03,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:03,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 3471 transitions. [2024-11-16 04:05:03,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2024-11-16 04:05:03,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:03,796 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:03,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 04:05:03,796 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:03,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash -481955521, now seen corresponding path program 1 times [2024-11-16 04:05:03,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:03,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876785351] [2024-11-16 04:05:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:04,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2024-11-16 04:05:04,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:04,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876785351] [2024-11-16 04:05:04,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876785351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:04,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:05:04,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:05:04,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078481216] [2024-11-16 04:05:04,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:04,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:04,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:04,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:04,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:05:04,196 INFO L87 Difference]: Start difference. First operand 3227 states and 3471 transitions. Second operand has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:04,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:04,550 INFO L93 Difference]: Finished difference Result 6810 states and 7403 transitions. [2024-11-16 04:05:04,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:04,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 615 [2024-11-16 04:05:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:04,558 INFO L225 Difference]: With dead ends: 6810 [2024-11-16 04:05:04,559 INFO L226 Difference]: Without dead ends: 3764 [2024-11-16 04:05:04,561 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 [2024-11-16 04:05:04,561 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 110 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:04,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 232 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:04,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2024-11-16 04:05:04,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 3585. [2024-11-16 04:05:04,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 3584 states have (on average 1.0708705357142858) internal successors, (3838), 3584 states have internal predecessors, (3838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:04,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 3838 transitions. [2024-11-16 04:05:04,591 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 3838 transitions. Word has length 615 [2024-11-16 04:05:04,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:04,592 INFO L471 AbstractCegarLoop]: Abstraction has 3585 states and 3838 transitions. [2024-11-16 04:05:04,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:04,592 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 3838 transitions. [2024-11-16 04:05:04,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-16 04:05:04,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:04,595 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:04,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 04:05:04,596 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:04,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -769283290, now seen corresponding path program 1 times [2024-11-16 04:05:04,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:04,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105270642] [2024-11-16 04:05:04,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:04,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:04,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 943 proven. 111 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:05:04,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:04,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105270642] [2024-11-16 04:05:04,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105270642] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:04,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973248289] [2024-11-16 04:05:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:04,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:04,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:04,917 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) [2024-11-16 04:05:04,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:05:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:05,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:05,083 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2024-11-16 04:05:05,247 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:05,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973248289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:05,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:05,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:05:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552702624] [2024-11-16 04:05:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:05,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:05,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:05,250 INFO L87 Difference]: Start difference. First operand 3585 states and 3838 transitions. Second operand has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:05,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:05,739 INFO L93 Difference]: Finished difference Result 8242 states and 8814 transitions. [2024-11-16 04:05:05,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:05,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 656 [2024-11-16 04:05:05,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:05,759 INFO L225 Difference]: With dead ends: 8242 [2024-11-16 04:05:05,759 INFO L226 Difference]: Without dead ends: 3943 [2024-11-16 04:05:05,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:05,767 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 121 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:05,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 246 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:05:05,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2024-11-16 04:05:05,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3585. [2024-11-16 04:05:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3585 states, 3584 states have (on average 1.064453125) internal successors, (3815), 3584 states have internal predecessors, (3815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:05,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3585 states to 3585 states and 3815 transitions. [2024-11-16 04:05:05,840 INFO L78 Accepts]: Start accepts. Automaton has 3585 states and 3815 transitions. Word has length 656 [2024-11-16 04:05:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:05,840 INFO L471 AbstractCegarLoop]: Abstraction has 3585 states and 3815 transitions. [2024-11-16 04:05:05,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 3585 states and 3815 transitions. [2024-11-16 04:05:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 749 [2024-11-16 04:05:05,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:05,855 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:05,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:05:06,055 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,SelfDestructingSolverStorable12 [2024-11-16 04:05:06,056 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:06,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash -614609599, now seen corresponding path program 1 times [2024-11-16 04:05:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400938861] [2024-11-16 04:05:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 1402 proven. 111 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-16 04:05:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:06,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400938861] [2024-11-16 04:05:06,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400938861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:06,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704284506] [2024-11-16 04:05:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:06,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:06,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:06,469 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) [2024-11-16 04:05:06,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:05:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:06,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:06,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1889 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 1536 trivial. 0 not checked. [2024-11-16 04:05:06,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:06,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704284506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:06,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:06,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:05:06,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897304557] [2024-11-16 04:05:06,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:06,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:06,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:06,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:06,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:06,733 INFO L87 Difference]: Start difference. First operand 3585 states and 3815 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:07,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:07,182 INFO L93 Difference]: Finished difference Result 7705 states and 8268 transitions. [2024-11-16 04:05:07,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 748 [2024-11-16 04:05:07,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:07,193 INFO L225 Difference]: With dead ends: 7705 [2024-11-16 04:05:07,194 INFO L226 Difference]: Without dead ends: 4301 [2024-11-16 04:05:07,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:07,198 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 121 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:07,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 237 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:05:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-11-16 04:05:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 3943. [2024-11-16 04:05:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3942 states have (on average 1.0657026889903602) internal successors, (4201), 3942 states have internal predecessors, (4201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4201 transitions. [2024-11-16 04:05:07,238 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4201 transitions. Word has length 748 [2024-11-16 04:05:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:07,239 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 4201 transitions. [2024-11-16 04:05:07,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4201 transitions. [2024-11-16 04:05:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 805 [2024-11-16 04:05:07,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:05:07,245 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:07,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:05:07,445 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,SelfDestructingSolverStorable13 [2024-11-16 04:05:07,446 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:05:07,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:05:07,446 INFO L85 PathProgramCache]: Analyzing trace with hash 618410563, now seen corresponding path program 1 times [2024-11-16 04:05:07,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:05:07,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769833085] [2024-11-16 04:05:07,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:07,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:05:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 1360 proven. 156 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-16 04:05:07,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:05:07,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769833085] [2024-11-16 04:05:07,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769833085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:05:07,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659175230] [2024-11-16 04:05:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:05:07,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:07,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:05:07,821 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) [2024-11-16 04:05:07,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:05:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:05:08,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:05:08,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:05:08,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1892 backedges. 353 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2024-11-16 04:05:08,118 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:05:08,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659175230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:05:08,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:05:08,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 04:05:08,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500728112] [2024-11-16 04:05:08,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:05:08,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:05:08,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:05:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:05:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:08,120 INFO L87 Difference]: Start difference. First operand 3943 states and 4201 transitions. Second operand has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:08,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:05:08,475 INFO L93 Difference]: Finished difference Result 4838 states and 5130 transitions. [2024-11-16 04:05:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:05:08,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 804 [2024-11-16 04:05:08,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:05:08,477 INFO L225 Difference]: With dead ends: 4838 [2024-11-16 04:05:08,477 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:05:08,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 804 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:05:08,485 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:05:08,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 15 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:05:08,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:05:08,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:05:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:05:08,490 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 804 [2024-11-16 04:05:08,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:05:08,490 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:05:08,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:05:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:05:08,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:05:08,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:05:08,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:05:08,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:05:08,699 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:05:08,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:05:09,067 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:05:09,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:05:09 BoogieIcfgContainer [2024-11-16 04:05:09,076 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:05:09,076 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:05:09,076 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:05:09,077 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:05:09,077 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:04:53" (3/4) ... [2024-11-16 04:05:09,079 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:05:09,094 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 04:05:09,097 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:05:09,101 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:05:09,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:05:09,229 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:05:09,229 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:05:09,229 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:05:09,230 INFO L158 Benchmark]: Toolchain (without parser) took 17397.14ms. Allocated memory was 209.7MB in the beginning and 587.2MB in the end (delta: 377.5MB). Free memory was 138.2MB in the beginning and 535.5MB in the end (delta: -397.4MB). Peak memory consumption was 320.1MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,230 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 209.7MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:05:09,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.17ms. Allocated memory is still 209.7MB. Free memory was 137.9MB in the beginning and 172.0MB in the end (delta: -34.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,231 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.17ms. Allocated memory is still 209.7MB. Free memory was 172.0MB in the beginning and 162.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,231 INFO L158 Benchmark]: Boogie Preprocessor took 87.81ms. Allocated memory is still 209.7MB. Free memory was 162.6MB in the beginning and 151.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,232 INFO L158 Benchmark]: IcfgBuilder took 1006.04ms. Allocated memory is still 209.7MB. Free memory was 151.0MB in the beginning and 141.7MB in the end (delta: 9.3MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,232 INFO L158 Benchmark]: TraceAbstraction took 15339.46ms. Allocated memory was 209.7MB in the beginning and 587.2MB in the end (delta: 377.5MB). Free memory was 140.6MB in the beginning and 202.6MB in the end (delta: -61.9MB). Peak memory consumption was 315.5MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,232 INFO L158 Benchmark]: Witness Printer took 153.09ms. Allocated memory is still 587.2MB. Free memory was 202.6MB in the beginning and 535.5MB in the end (delta: -332.9MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-16 04:05:09,233 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 209.7MB. Free memory is still 167.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.17ms. Allocated memory is still 209.7MB. Free memory was 137.9MB in the beginning and 172.0MB in the end (delta: -34.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 168.17ms. Allocated memory is still 209.7MB. Free memory was 172.0MB in the beginning and 162.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.81ms. Allocated memory is still 209.7MB. Free memory was 162.6MB in the beginning and 151.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * IcfgBuilder took 1006.04ms. Allocated memory is still 209.7MB. Free memory was 151.0MB in the beginning and 141.7MB in the end (delta: 9.3MB). Peak memory consumption was 97.4MB. Max. memory is 16.1GB. * TraceAbstraction took 15339.46ms. Allocated memory was 209.7MB in the beginning and 587.2MB in the end (delta: 377.5MB). Free memory was 140.6MB in the beginning and 202.6MB in the end (delta: -61.9MB). Peak memory consumption was 315.5MB. Max. memory is 16.1GB. * Witness Printer took 153.09ms. Allocated memory is still 587.2MB. Free memory was 202.6MB in the beginning and 535.5MB in the end (delta: -332.9MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 194]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.9s, OverallIterations: 15, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2227 SdHoareTripleChecker+Valid, 8.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2227 mSDsluCounter, 1928 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 1012 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7985 IncrementalHoareTripleChecker+Invalid, 8997 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1012 mSolverCounterUnsat, 1809 mSDtfsCounter, 7985 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2252 GetRequests, 2226 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3943occurred in iteration=14, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 15 MinimizatonAttempts, 2336 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 8167 NumberOfCodeBlocks, 8167 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8149 ConstructedInterpolants, 0 QuantifiedInterpolants, 15313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2728 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 15522/15900 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:05:09,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE