./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/Problem11_label55.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 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:23:56,429 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:23:56,545 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:23:56,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:23:56,553 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:23:56,583 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:23:56,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:23:56,586 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:23:56,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:23:56,589 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:23:56,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:23:56,590 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:23:56,591 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:23:56,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:23:56,593 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:23:56,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:23:56,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:23:56,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:23:56,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:23:56,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:23:56,595 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:23:56,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:23:56,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:23:56,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:23:56,596 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:23:56,597 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:23:56,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:23:56,597 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:23:56,597 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:23:56,597 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:23:56,598 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:23:56,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:23:56,598 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:23:56,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:23:56,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:23:56,599 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:23:56,603 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:23:56,604 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:23:56,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:23:56,604 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:23:56,605 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:23:56,605 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:23:56,605 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ed93fbea5c4ce7662a30833852408f6a41bed2c847c0002d827dceaca299880 [2024-11-09 19:23:56,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:23:56,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:23:56,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:23:56,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:23:56,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:23:56,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2024-11-09 19:23:58,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:23:58,648 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:23:58,648 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label55.c [2024-11-09 19:23:58,665 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9c57b90/ee56447e6e484389b92afb63e2219857/FLAGa74ce7982 [2024-11-09 19:23:58,682 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c9c57b90/ee56447e6e484389b92afb63e2219857 [2024-11-09 19:23:58,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:23:58,686 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:23:58,687 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:23:58,687 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:23:58,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:23:58,693 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:23:58" (1/1) ... [2024-11-09 19:23:58,694 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6558c49a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:58, skipping insertion in model container [2024-11-09 19:23:58,694 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:23:58" (1/1) ... [2024-11-09 19:23:58,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:23:59,022 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/Problem11_label55.c[6546,6559] [2024-11-09 19:23:59,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:23:59,269 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:23:59,304 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/Problem11_label55.c[6546,6559] [2024-11-09 19:23:59,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:23:59,482 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:23:59,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59 WrapperNode [2024-11-09 19:23:59,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:23:59,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:23:59,484 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:23:59,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:23:59,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,520 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,624 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-09 19:23:59,625 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:23:59,626 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:23:59,626 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:23:59,626 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:23:59,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,660 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,721 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]. [2024-11-09 19:23:59,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,765 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,776 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,799 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:23:59,816 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:23:59,816 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:23:59,816 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:23:59,817 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (1/1) ... [2024-11-09 19:23:59,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:23:59,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:23:59,853 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) [2024-11-09 19:23:59,856 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 [2024-11-09 19:23:59,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:23:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:23:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:23:59,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:23:59,958 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:23:59,959 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:24:01,913 INFO L? ?]: Removed 248 outVars from TransFormulas that were not future-live. [2024-11-09 19:24:01,914 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:24:01,944 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:24:01,944 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:24:01,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:01 BoogieIcfgContainer [2024-11-09 19:24:01,945 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:24:01,948 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:24:01,948 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:24:01,952 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:24:01,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:23:58" (1/3) ... [2024-11-09 19:24:01,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb061dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:01, skipping insertion in model container [2024-11-09 19:24:01,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:23:59" (2/3) ... [2024-11-09 19:24:01,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bb061dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:01, skipping insertion in model container [2024-11-09 19:24:01,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:01" (3/3) ... [2024-11-09 19:24:01,956 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label55.c [2024-11-09 19:24:01,973 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:24:01,974 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:24:02,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:24:02,067 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;@a2889f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:24:02,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:24:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand has 286 states, 284 states have (on average 2.1267605633802815) internal successors, (604), 285 states have internal predecessors, (604), 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) [2024-11-09 19:24:02,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 19:24:02,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:02,086 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] [2024-11-09 19:24:02,086 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:02,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:02,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1353794731, now seen corresponding path program 1 times [2024-11-09 19:24:02,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:02,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965857755] [2024-11-09 19:24:02,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:02,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:02,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:02,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965857755] [2024-11-09 19:24:02,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965857755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:02,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:02,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:24:02,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437029235] [2024-11-09 19:24:02,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:02,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:02,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:02,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:02,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:02,529 INFO L87 Difference]: Start difference. First operand has 286 states, 284 states have (on average 2.1267605633802815) internal successors, (604), 285 states have internal predecessors, (604), 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 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-09 19:24:03,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:03,926 INFO L93 Difference]: Finished difference Result 782 states and 1726 transitions. [2024-11-09 19:24:03,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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 47 [2024-11-09 19:24:03,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:03,940 INFO L225 Difference]: With dead ends: 782 [2024-11-09 19:24:03,940 INFO L226 Difference]: Without dead ends: 416 [2024-11-09 19:24:03,944 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 [2024-11-09 19:24:03,947 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 301 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 870 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 870 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:03,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 200 Invalid, 1001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 870 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:24:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-09 19:24:03,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 414. [2024-11-09 19:24:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 2.0314769975786926) internal successors, (839), 413 states have internal predecessors, (839), 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) [2024-11-09 19:24:04,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 839 transitions. [2024-11-09 19:24:04,002 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 839 transitions. Word has length 47 [2024-11-09 19:24:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:04,003 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 839 transitions. [2024-11-09 19:24:04,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 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) [2024-11-09 19:24:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 839 transitions. [2024-11-09 19:24:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-09 19:24:04,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:04,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:04,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:24:04,009 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:04,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1148885972, now seen corresponding path program 1 times [2024-11-09 19:24:04,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:04,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503543453] [2024-11-09 19:24:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:04,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:04,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:04,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503543453] [2024-11-09 19:24:04,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503543453] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:04,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:04,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:24:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904363296] [2024-11-09 19:24:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:04,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:04,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:04,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:04,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:04,230 INFO L87 Difference]: Start difference. First operand 414 states and 839 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2024-11-09 19:24:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:05,139 INFO L93 Difference]: Finished difference Result 1217 states and 2487 transitions. [2024-11-09 19:24:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:05,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 116 [2024-11-09 19:24:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:05,144 INFO L225 Difference]: With dead ends: 1217 [2024-11-09 19:24:05,144 INFO L226 Difference]: Without dead ends: 805 [2024-11-09 19:24:05,146 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 [2024-11-09 19:24:05,147 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 264 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:05,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 124 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:24:05,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2024-11-09 19:24:05,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 792. [2024-11-09 19:24:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 791 states have (on average 1.9848293299620734) internal successors, (1570), 791 states have internal predecessors, (1570), 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) [2024-11-09 19:24:05,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1570 transitions. [2024-11-09 19:24:05,194 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1570 transitions. Word has length 116 [2024-11-09 19:24:05,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:05,197 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1570 transitions. [2024-11-09 19:24:05,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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) [2024-11-09 19:24:05,197 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1570 transitions. [2024-11-09 19:24:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 19:24:05,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:05,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:05,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:24:05,204 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:05,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:05,204 INFO L85 PathProgramCache]: Analyzing trace with hash 718341096, now seen corresponding path program 1 times [2024-11-09 19:24:05,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:05,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487812757] [2024-11-09 19:24:05,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:05,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:05,746 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:05,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:05,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487812757] [2024-11-09 19:24:05,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487812757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:05,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:05,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:05,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060374117] [2024-11-09 19:24:05,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:05,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:05,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:05,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:05,753 INFO L87 Difference]: Start difference. First operand 792 states and 1570 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:24:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:07,413 INFO L93 Difference]: Finished difference Result 2330 states and 4536 transitions. [2024-11-09 19:24:07,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:07,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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 117 [2024-11-09 19:24:07,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:07,423 INFO L225 Difference]: With dead ends: 2330 [2024-11-09 19:24:07,423 INFO L226 Difference]: Without dead ends: 1540 [2024-11-09 19:24:07,425 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 [2024-11-09 19:24:07,426 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 845 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:07,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 225 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1609 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:24:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2024-11-09 19:24:07,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1537. [2024-11-09 19:24:07,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1537 states, 1536 states have (on average 1.869140625) internal successors, (2871), 1536 states have internal predecessors, (2871), 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) [2024-11-09 19:24:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1537 states to 1537 states and 2871 transitions. [2024-11-09 19:24:07,490 INFO L78 Accepts]: Start accepts. Automaton has 1537 states and 2871 transitions. Word has length 117 [2024-11-09 19:24:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:07,492 INFO L471 AbstractCegarLoop]: Abstraction has 1537 states and 2871 transitions. [2024-11-09 19:24:07,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 3 states have internal predecessors, (117), 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) [2024-11-09 19:24:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1537 states and 2871 transitions. [2024-11-09 19:24:07,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-09 19:24:07,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:07,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:07,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:24:07,498 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:07,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:07,499 INFO L85 PathProgramCache]: Analyzing trace with hash -2079115974, now seen corresponding path program 1 times [2024-11-09 19:24:07,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:07,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736442304] [2024-11-09 19:24:07,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:07,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:07,684 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736442304] [2024-11-09 19:24:07,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736442304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:07,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:07,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:07,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433647009] [2024-11-09 19:24:07,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:07,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:07,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:07,688 INFO L87 Difference]: Start difference. First operand 1537 states and 2871 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-09 19:24:08,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:08,678 INFO L93 Difference]: Finished difference Result 3643 states and 6889 transitions. [2024-11-09 19:24:08,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:08,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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 160 [2024-11-09 19:24:08,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:08,689 INFO L225 Difference]: With dead ends: 3643 [2024-11-09 19:24:08,689 INFO L226 Difference]: Without dead ends: 2293 [2024-11-09 19:24:08,693 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 [2024-11-09 19:24:08,694 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 280 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:08,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 459 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:24:08,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2293 states. [2024-11-09 19:24:08,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2293 to 2097. [2024-11-09 19:24:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 2096 states have (on average 1.8530534351145038) internal successors, (3884), 2096 states have internal predecessors, (3884), 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) [2024-11-09 19:24:08,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 3884 transitions. [2024-11-09 19:24:08,736 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 3884 transitions. Word has length 160 [2024-11-09 19:24:08,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:08,737 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 3884 transitions. [2024-11-09 19:24:08,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 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) [2024-11-09 19:24:08,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 3884 transitions. [2024-11-09 19:24:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-09 19:24:08,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:08,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:08,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:24:08,743 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:08,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:08,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1126606814, now seen corresponding path program 1 times [2024-11-09 19:24:08,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:08,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575444735] [2024-11-09 19:24:08,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:08,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:08,946 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:08,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575444735] [2024-11-09 19:24:08,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575444735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:08,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:08,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:08,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146900766] [2024-11-09 19:24:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:08,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:08,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:08,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:08,949 INFO L87 Difference]: Start difference. First operand 2097 states and 3884 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-09 19:24:09,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:09,772 INFO L93 Difference]: Finished difference Result 4571 states and 8507 transitions. [2024-11-09 19:24:09,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:09,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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 191 [2024-11-09 19:24:09,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:09,784 INFO L225 Difference]: With dead ends: 4571 [2024-11-09 19:24:09,785 INFO L226 Difference]: Without dead ends: 2476 [2024-11-09 19:24:09,787 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 [2024-11-09 19:24:09,790 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 276 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:09,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 471 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:24:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-09 19:24:09,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2467. [2024-11-09 19:24:09,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2466 states have (on average 1.8507704785077048) internal successors, (4564), 2466 states have internal predecessors, (4564), 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) [2024-11-09 19:24:09,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 4564 transitions. [2024-11-09 19:24:09,833 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 4564 transitions. Word has length 191 [2024-11-09 19:24:09,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:09,834 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 4564 transitions. [2024-11-09 19:24:09,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-11-09 19:24:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 4564 transitions. [2024-11-09 19:24:09,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-09 19:24:09,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:09,837 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:09,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:24:09,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:09,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:09,838 INFO L85 PathProgramCache]: Analyzing trace with hash 75770147, now seen corresponding path program 1 times [2024-11-09 19:24:09,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:09,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111247816] [2024-11-09 19:24:09,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:09,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:10,092 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-09 19:24:10,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:10,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111247816] [2024-11-09 19:24:10,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111247816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:10,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:10,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:24:10,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243073403] [2024-11-09 19:24:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:10,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:10,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:10,094 INFO L87 Difference]: Start difference. First operand 2467 states and 4564 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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) [2024-11-09 19:24:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:10,939 INFO L93 Difference]: Finished difference Result 5864 states and 11000 transitions. [2024-11-09 19:24:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:10,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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 229 [2024-11-09 19:24:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:10,952 INFO L225 Difference]: With dead ends: 5864 [2024-11-09 19:24:10,952 INFO L226 Difference]: Without dead ends: 3399 [2024-11-09 19:24:10,955 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 [2024-11-09 19:24:10,957 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 158 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:10,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 161 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:24:10,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3399 states. [2024-11-09 19:24:11,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3399 to 3399. [2024-11-09 19:24:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3399 states, 3398 states have (on average 1.8337257210123603) internal successors, (6231), 3398 states have internal predecessors, (6231), 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) [2024-11-09 19:24:11,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3399 states to 3399 states and 6231 transitions. [2024-11-09 19:24:11,061 INFO L78 Accepts]: Start accepts. Automaton has 3399 states and 6231 transitions. Word has length 229 [2024-11-09 19:24:11,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:11,062 INFO L471 AbstractCegarLoop]: Abstraction has 3399 states and 6231 transitions. [2024-11-09 19:24:11,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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) [2024-11-09 19:24:11,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3399 states and 6231 transitions. [2024-11-09 19:24:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-09 19:24:11,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:11,067 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:11,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:24:11,068 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:11,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1412410579, now seen corresponding path program 1 times [2024-11-09 19:24:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:11,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462124386] [2024-11-09 19:24:11,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:11,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-09 19:24:11,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:11,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462124386] [2024-11-09 19:24:11,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462124386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:11,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:11,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:11,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706193009] [2024-11-09 19:24:11,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:11,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:11,366 INFO L87 Difference]: Start difference. First operand 3399 states and 6231 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-11-09 19:24:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:12,379 INFO L93 Difference]: Finished difference Result 7730 states and 14263 transitions. [2024-11-09 19:24:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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 231 [2024-11-09 19:24:12,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:12,391 INFO L225 Difference]: With dead ends: 7730 [2024-11-09 19:24:12,391 INFO L226 Difference]: Without dead ends: 4333 [2024-11-09 19:24:12,394 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 [2024-11-09 19:24:12,395 INFO L432 NwaCegarLoop]: 482 mSDtfsCounter, 271 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:12,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 505 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:24:12,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2024-11-09 19:24:12,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4324. [2024-11-09 19:24:12,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 4323 states have (on average 1.8207263474439046) internal successors, (7871), 4323 states have internal predecessors, (7871), 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) [2024-11-09 19:24:12,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 7871 transitions. [2024-11-09 19:24:12,462 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 7871 transitions. Word has length 231 [2024-11-09 19:24:12,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:12,463 INFO L471 AbstractCegarLoop]: Abstraction has 4324 states and 7871 transitions. [2024-11-09 19:24:12,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 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) [2024-11-09 19:24:12,463 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 7871 transitions. [2024-11-09 19:24:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-09 19:24:12,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:12,467 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, 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] [2024-11-09 19:24:12,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:24:12,467 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:12,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:12,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1375513833, now seen corresponding path program 1 times [2024-11-09 19:24:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99296789] [2024-11-09 19:24:12,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:12,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:12,923 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:12,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:12,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99296789] [2024-11-09 19:24:12,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99296789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:12,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:12,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:24:12,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433688651] [2024-11-09 19:24:12,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:12,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:12,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:12,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:12,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:12,927 INFO L87 Difference]: Start difference. First operand 4324 states and 7871 transitions. Second operand has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2024-11-09 19:24:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:14,504 INFO L93 Difference]: Finished difference Result 13309 states and 24505 transitions. [2024-11-09 19:24:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:14,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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 251 [2024-11-09 19:24:14,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:14,536 INFO L225 Difference]: With dead ends: 13309 [2024-11-09 19:24:14,537 INFO L226 Difference]: Without dead ends: 8987 [2024-11-09 19:24:14,543 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 [2024-11-09 19:24:14,543 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 529 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:14,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 216 Invalid, 1692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:24:14,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8987 states. [2024-11-09 19:24:14,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8987 to 7679. [2024-11-09 19:24:14,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7679 states, 7678 states have (on average 1.8175306069288877) internal successors, (13955), 7678 states have internal predecessors, (13955), 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) [2024-11-09 19:24:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7679 states to 7679 states and 13955 transitions. [2024-11-09 19:24:14,779 INFO L78 Accepts]: Start accepts. Automaton has 7679 states and 13955 transitions. Word has length 251 [2024-11-09 19:24:14,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:14,779 INFO L471 AbstractCegarLoop]: Abstraction has 7679 states and 13955 transitions. [2024-11-09 19:24:14,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.75) internal successors, (251), 4 states have internal predecessors, (251), 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) [2024-11-09 19:24:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 7679 states and 13955 transitions. [2024-11-09 19:24:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-09 19:24:14,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:14,784 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:14,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:24:14,784 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:14,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:14,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1481740084, now seen corresponding path program 1 times [2024-11-09 19:24:14,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:14,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562570401] [2024-11-09 19:24:14,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:15,024 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:15,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:15,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562570401] [2024-11-09 19:24:15,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562570401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:15,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:15,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:15,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092008167] [2024-11-09 19:24:15,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:15,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:15,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:15,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:15,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:15,027 INFO L87 Difference]: Start difference. First operand 7679 states and 13955 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 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) [2024-11-09 19:24:16,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:16,671 INFO L93 Difference]: Finished difference Result 22427 states and 41167 transitions. [2024-11-09 19:24:16,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:16,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 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 261 [2024-11-09 19:24:16,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:16,709 INFO L225 Difference]: With dead ends: 22427 [2024-11-09 19:24:16,710 INFO L226 Difference]: Without dead ends: 14750 [2024-11-09 19:24:16,720 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 [2024-11-09 19:24:16,721 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 516 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:16,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 103 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:24:16,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14750 states. [2024-11-09 19:24:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14750 to 14564. [2024-11-09 19:24:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14564 states, 14563 states have (on average 1.8255853876261758) internal successors, (26586), 14563 states have internal predecessors, (26586), 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) [2024-11-09 19:24:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14564 states to 14564 states and 26586 transitions. [2024-11-09 19:24:16,966 INFO L78 Accepts]: Start accepts. Automaton has 14564 states and 26586 transitions. Word has length 261 [2024-11-09 19:24:16,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:16,967 INFO L471 AbstractCegarLoop]: Abstraction has 14564 states and 26586 transitions. [2024-11-09 19:24:16,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 3 states have internal predecessors, (261), 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) [2024-11-09 19:24:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14564 states and 26586 transitions. [2024-11-09 19:24:16,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-09 19:24:16,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:16,973 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:16,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:24:16,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:16,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:16,977 INFO L85 PathProgramCache]: Analyzing trace with hash -99916917, now seen corresponding path program 1 times [2024-11-09 19:24:16,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:16,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529252992] [2024-11-09 19:24:16,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:16,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:17,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:17,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529252992] [2024-11-09 19:24:17,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529252992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:17,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:17,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:24:17,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620241565] [2024-11-09 19:24:17,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:17,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:17,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:17,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:17,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:17,390 INFO L87 Difference]: Start difference. First operand 14564 states and 26586 transitions. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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) [2024-11-09 19:24:18,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:18,903 INFO L93 Difference]: Finished difference Result 33950 states and 62680 transitions. [2024-11-09 19:24:18,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:18,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 261 [2024-11-09 19:24:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:18,946 INFO L225 Difference]: With dead ends: 33950 [2024-11-09 19:24:18,947 INFO L226 Difference]: Without dead ends: 19759 [2024-11-09 19:24:18,960 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 [2024-11-09 19:24:18,961 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 534 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:18,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 141 Invalid, 1865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:24:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19759 states. [2024-11-09 19:24:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19759 to 19745. [2024-11-09 19:24:19,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19745 states, 19744 states have (on average 1.8345320097244733) internal successors, (36221), 19744 states have internal predecessors, (36221), 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) [2024-11-09 19:24:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19745 states to 19745 states and 36221 transitions. [2024-11-09 19:24:19,236 INFO L78 Accepts]: Start accepts. Automaton has 19745 states and 36221 transitions. Word has length 261 [2024-11-09 19:24:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:19,236 INFO L471 AbstractCegarLoop]: Abstraction has 19745 states and 36221 transitions. [2024-11-09 19:24:19,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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) [2024-11-09 19:24:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 19745 states and 36221 transitions. [2024-11-09 19:24:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-11-09 19:24:19,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:19,318 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, 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, 1, 1, 1] [2024-11-09 19:24:19,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 19:24:19,318 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:19,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:19,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1428252671, now seen corresponding path program 1 times [2024-11-09 19:24:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155548905] [2024-11-09 19:24:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:19,545 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-09 19:24:19,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:19,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155548905] [2024-11-09 19:24:19,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155548905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:19,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:19,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:19,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440260422] [2024-11-09 19:24:19,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:19,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:19,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:19,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:19,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:19,547 INFO L87 Difference]: Start difference. First operand 19745 states and 36221 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) 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) [2024-11-09 19:24:20,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:20,587 INFO L93 Difference]: Finished difference Result 39315 states and 72155 transitions. [2024-11-09 19:24:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:20,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) 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 268 [2024-11-09 19:24:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:20,626 INFO L225 Difference]: With dead ends: 39315 [2024-11-09 19:24:20,626 INFO L226 Difference]: Without dead ends: 19757 [2024-11-09 19:24:20,647 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 [2024-11-09 19:24:20,648 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 275 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:20,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 502 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:24:20,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19757 states. [2024-11-09 19:24:20,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19757 to 19559. [2024-11-09 19:24:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19559 states, 19558 states have (on average 1.799417118314756) internal successors, (35193), 19558 states have internal predecessors, (35193), 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) [2024-11-09 19:24:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19559 states to 19559 states and 35193 transitions. [2024-11-09 19:24:21,014 INFO L78 Accepts]: Start accepts. Automaton has 19559 states and 35193 transitions. Word has length 268 [2024-11-09 19:24:21,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:21,015 INFO L471 AbstractCegarLoop]: Abstraction has 19559 states and 35193 transitions. [2024-11-09 19:24:21,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) 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) [2024-11-09 19:24:21,016 INFO L276 IsEmpty]: Start isEmpty. Operand 19559 states and 35193 transitions. [2024-11-09 19:24:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-09 19:24:21,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:21,024 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:21,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:24:21,025 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:21,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2006307781, now seen corresponding path program 1 times [2024-11-09 19:24:21,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:21,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341027196] [2024-11-09 19:24:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:21,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:21,470 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:21,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:21,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341027196] [2024-11-09 19:24:21,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341027196] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:21,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:21,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:21,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712615563] [2024-11-09 19:24:21,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:21,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:21,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:21,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:21,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:21,473 INFO L87 Difference]: Start difference. First operand 19559 states and 35193 transitions. Second operand has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-11-09 19:24:22,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:22,682 INFO L93 Difference]: Finished difference Result 41516 states and 75065 transitions. [2024-11-09 19:24:22,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:22,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 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 282 [2024-11-09 19:24:22,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:22,715 INFO L225 Difference]: With dead ends: 41516 [2024-11-09 19:24:22,715 INFO L226 Difference]: Without dead ends: 21589 [2024-11-09 19:24:22,734 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 [2024-11-09 19:24:22,735 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 454 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 1628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:22,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 177 Invalid, 1628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:24:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21589 states. [2024-11-09 19:24:23,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21589 to 18423. [2024-11-09 19:24:23,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18423 states, 18422 states have (on average 1.764249267180545) internal successors, (32501), 18422 states have internal predecessors, (32501), 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) [2024-11-09 19:24:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18423 states to 18423 states and 32501 transitions. [2024-11-09 19:24:23,057 INFO L78 Accepts]: Start accepts. Automaton has 18423 states and 32501 transitions. Word has length 282 [2024-11-09 19:24:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:23,057 INFO L471 AbstractCegarLoop]: Abstraction has 18423 states and 32501 transitions. [2024-11-09 19:24:23,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 70.5) internal successors, (282), 3 states have internal predecessors, (282), 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) [2024-11-09 19:24:23,058 INFO L276 IsEmpty]: Start isEmpty. Operand 18423 states and 32501 transitions. [2024-11-09 19:24:23,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-09 19:24:23,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:23,068 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, 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, 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] [2024-11-09 19:24:23,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 19:24:23,069 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:23,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash 155106288, now seen corresponding path program 1 times [2024-11-09 19:24:23,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:23,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376118637] [2024-11-09 19:24:23,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:23,236 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-09 19:24:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376118637] [2024-11-09 19:24:23,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376118637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:23,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:23,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:23,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076959519] [2024-11-09 19:24:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:23,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:23,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:23,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:23,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:23,238 INFO L87 Difference]: Start difference. First operand 18423 states and 32501 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2024-11-09 19:24:24,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:24,061 INFO L93 Difference]: Finished difference Result 38504 states and 67918 transitions. [2024-11-09 19:24:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:24,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 317 [2024-11-09 19:24:24,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:24,088 INFO L225 Difference]: With dead ends: 38504 [2024-11-09 19:24:24,088 INFO L226 Difference]: Without dead ends: 22492 [2024-11-09 19:24:24,100 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 [2024-11-09 19:24:24,101 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 296 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:24,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 151 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:24:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22492 states. [2024-11-09 19:24:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22492 to 13789. [2024-11-09 19:24:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13789 states, 13788 states have (on average 1.7715404699738904) internal successors, (24426), 13788 states have internal predecessors, (24426), 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) [2024-11-09 19:24:24,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13789 states to 13789 states and 24426 transitions. [2024-11-09 19:24:24,403 INFO L78 Accepts]: Start accepts. Automaton has 13789 states and 24426 transitions. Word has length 317 [2024-11-09 19:24:24,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:24,404 INFO L471 AbstractCegarLoop]: Abstraction has 13789 states and 24426 transitions. [2024-11-09 19:24:24,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2024-11-09 19:24:24,404 INFO L276 IsEmpty]: Start isEmpty. Operand 13789 states and 24426 transitions. [2024-11-09 19:24:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-09 19:24:24,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:24,415 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, 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, 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] [2024-11-09 19:24:24,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 19:24:24,415 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:24,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:24,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1980105712, now seen corresponding path program 1 times [2024-11-09 19:24:24,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:24,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240471522] [2024-11-09 19:24:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:24,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:24,955 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:24,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:24,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240471522] [2024-11-09 19:24:24,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240471522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:24,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:24,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:24,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718822040] [2024-11-09 19:24:24,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:24,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:24,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:24,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:24,959 INFO L87 Difference]: Start difference. First operand 13789 states and 24426 transitions. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-09 19:24:26,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:26,389 INFO L93 Difference]: Finished difference Result 32771 states and 58110 transitions. [2024-11-09 19:24:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:26,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 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 329 [2024-11-09 19:24:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:26,415 INFO L225 Difference]: With dead ends: 32771 [2024-11-09 19:24:26,415 INFO L226 Difference]: Without dead ends: 18984 [2024-11-09 19:24:26,428 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 [2024-11-09 19:24:26,429 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 402 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1527 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:26,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 121 Invalid, 1764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1527 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:24:26,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18984 states. [2024-11-09 19:24:26,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18984 to 18236. [2024-11-09 19:24:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18236 states, 18235 states have (on average 1.7683575541540992) internal successors, (32246), 18235 states have internal predecessors, (32246), 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) [2024-11-09 19:24:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18236 states to 18236 states and 32246 transitions. [2024-11-09 19:24:26,886 INFO L78 Accepts]: Start accepts. Automaton has 18236 states and 32246 transitions. Word has length 329 [2024-11-09 19:24:26,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:26,886 INFO L471 AbstractCegarLoop]: Abstraction has 18236 states and 32246 transitions. [2024-11-09 19:24:26,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 3 states have internal predecessors, (329), 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) [2024-11-09 19:24:26,887 INFO L276 IsEmpty]: Start isEmpty. Operand 18236 states and 32246 transitions. [2024-11-09 19:24:26,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-09 19:24:26,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:26,894 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:26,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:24:26,895 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:26,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:26,895 INFO L85 PathProgramCache]: Analyzing trace with hash -377622010, now seen corresponding path program 1 times [2024-11-09 19:24:26,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:26,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371659165] [2024-11-09 19:24:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:26,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:27,880 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 209 proven. 98 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 19:24:27,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371659165] [2024-11-09 19:24:27,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371659165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:24:27,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252236451] [2024-11-09 19:24:27,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:27,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:27,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:27,884 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) [2024-11-09 19:24:27,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:24:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:28,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:24:28,073 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:24:28,582 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-09 19:24:28,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:24:28,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252236451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:28,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:24:28,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 19:24:28,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633601763] [2024-11-09 19:24:28,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:28,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:28,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:24:28,587 INFO L87 Difference]: Start difference. First operand 18236 states and 32246 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-11-09 19:24:29,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:29,658 INFO L93 Difference]: Finished difference Result 42402 states and 74844 transitions. [2024-11-09 19:24:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:29,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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 337 [2024-11-09 19:24:29,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:29,685 INFO L225 Difference]: With dead ends: 42402 [2024-11-09 19:24:29,685 INFO L226 Difference]: Without dead ends: 24538 [2024-11-09 19:24:29,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 19:24:29,701 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 431 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:29,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 178 Invalid, 1257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:24:29,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24538 states. [2024-11-09 19:24:29,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24538 to 23794. [2024-11-09 19:24:30,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23794 states, 23793 states have (on average 1.7625351994284033) internal successors, (41936), 23793 states have internal predecessors, (41936), 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) [2024-11-09 19:24:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23794 states to 23794 states and 41936 transitions. [2024-11-09 19:24:30,033 INFO L78 Accepts]: Start accepts. Automaton has 23794 states and 41936 transitions. Word has length 337 [2024-11-09 19:24:30,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:30,033 INFO L471 AbstractCegarLoop]: Abstraction has 23794 states and 41936 transitions. [2024-11-09 19:24:30,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 3 states have internal predecessors, (253), 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) [2024-11-09 19:24:30,033 INFO L276 IsEmpty]: Start isEmpty. Operand 23794 states and 41936 transitions. [2024-11-09 19:24:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-09 19:24:30,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:30,044 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:30,061 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:24:30,244 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,SelfDestructingSolverStorable14 [2024-11-09 19:24:30,245 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:30,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:30,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1042470639, now seen corresponding path program 1 times [2024-11-09 19:24:30,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:30,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2214211] [2024-11-09 19:24:30,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:30,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-09 19:24:30,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:30,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2214211] [2024-11-09 19:24:30,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2214211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:30,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:30,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 19:24:30,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353643359] [2024-11-09 19:24:30,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:30,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 19:24:30,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:30,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 19:24:30,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:24:30,997 INFO L87 Difference]: Start difference. First operand 23794 states and 41936 transitions. Second operand has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 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) [2024-11-09 19:24:31,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:31,914 INFO L93 Difference]: Finished difference Result 45909 states and 80708 transitions. [2024-11-09 19:24:31,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 19:24:31,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 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 354 [2024-11-09 19:24:31,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:31,951 INFO L225 Difference]: With dead ends: 45909 [2024-11-09 19:24:31,951 INFO L226 Difference]: Without dead ends: 22109 [2024-11-09 19:24:31,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-09 19:24:31,967 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 335 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 944 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:31,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 74 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 944 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 19:24:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22109 states. [2024-11-09 19:24:32,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22109 to 22098. [2024-11-09 19:24:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22098 states, 22097 states have (on average 1.761506086799113) internal successors, (38924), 22097 states have internal predecessors, (38924), 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) [2024-11-09 19:24:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22098 states to 22098 states and 38924 transitions. [2024-11-09 19:24:32,289 INFO L78 Accepts]: Start accepts. Automaton has 22098 states and 38924 transitions. Word has length 354 [2024-11-09 19:24:32,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:32,290 INFO L471 AbstractCegarLoop]: Abstraction has 22098 states and 38924 transitions. [2024-11-09 19:24:32,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 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) [2024-11-09 19:24:32,290 INFO L276 IsEmpty]: Start isEmpty. Operand 22098 states and 38924 transitions. [2024-11-09 19:24:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-09 19:24:32,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:32,299 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:32,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:24:32,300 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:32,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:32,300 INFO L85 PathProgramCache]: Analyzing trace with hash 908950978, now seen corresponding path program 1 times [2024-11-09 19:24:32,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:32,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106156506] [2024-11-09 19:24:32,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:32,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:32,996 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-09 19:24:32,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:32,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106156506] [2024-11-09 19:24:32,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106156506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:33,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:33,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 19:24:33,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848487469] [2024-11-09 19:24:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:33,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:24:33,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:33,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:24:33,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 19:24:33,002 INFO L87 Difference]: Start difference. First operand 22098 states and 38924 transitions. Second operand has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2024-11-09 19:24:34,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:34,256 INFO L93 Difference]: Finished difference Result 47721 states and 84128 transitions. [2024-11-09 19:24:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:24:34,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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 359 [2024-11-09 19:24:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:34,287 INFO L225 Difference]: With dead ends: 47721 [2024-11-09 19:24:34,288 INFO L226 Difference]: Without dead ends: 26361 [2024-11-09 19:24:34,301 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 [2024-11-09 19:24:34,302 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 532 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:34,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 457 Invalid, 1645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:24:34,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26361 states. [2024-11-09 19:24:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26361 to 22457. [2024-11-09 19:24:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22457 states, 22456 states have (on average 1.733701460634129) internal successors, (38932), 22456 states have internal predecessors, (38932), 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) [2024-11-09 19:24:34,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22457 states to 22457 states and 38932 transitions. [2024-11-09 19:24:34,609 INFO L78 Accepts]: Start accepts. Automaton has 22457 states and 38932 transitions. Word has length 359 [2024-11-09 19:24:34,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:34,609 INFO L471 AbstractCegarLoop]: Abstraction has 22457 states and 38932 transitions. [2024-11-09 19:24:34,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.75) internal successors, (263), 4 states have internal predecessors, (263), 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) [2024-11-09 19:24:34,609 INFO L276 IsEmpty]: Start isEmpty. Operand 22457 states and 38932 transitions. [2024-11-09 19:24:34,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-09 19:24:34,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:34,620 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, 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, 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] [2024-11-09 19:24:34,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:24:34,620 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:34,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:34,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1682940291, now seen corresponding path program 1 times [2024-11-09 19:24:34,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:34,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71591709] [2024-11-09 19:24:34,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:34,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:35,763 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 155 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:35,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71591709] [2024-11-09 19:24:35,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71591709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:24:35,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830731976] [2024-11-09 19:24:35,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:35,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:24:35,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:24:35,767 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) [2024-11-09 19:24:35,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:24:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:35,931 INFO L255 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 19:24:35,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:24:37,766 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 155 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:37,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:24:41,540 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 222 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:24:41,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830731976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:24:41,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:24:41,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-09 19:24:41,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31066627] [2024-11-09 19:24:41,541 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:24:41,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 19:24:41,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:41,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 19:24:41,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-09 19:24:41,544 INFO L87 Difference]: Start difference. First operand 22457 states and 38932 transitions. Second operand has 13 states, 13 states have (on average 102.92307692307692) internal successors, (1338), 12 states have internal predecessors, (1338), 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) [2024-11-09 19:24:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:47,495 INFO L93 Difference]: Finished difference Result 50474 states and 87529 transitions. [2024-11-09 19:24:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 19:24:47,496 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 102.92307692307692) internal successors, (1338), 12 states have internal predecessors, (1338), 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 462 [2024-11-09 19:24:47,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:47,535 INFO L225 Difference]: With dead ends: 50474 [2024-11-09 19:24:47,535 INFO L226 Difference]: Without dead ends: 28204 [2024-11-09 19:24:47,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 934 GetRequests, 916 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=245, Unknown=0, NotChecked=0, Total=380 [2024-11-09 19:24:47,551 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 3441 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 9792 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3441 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 10466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 9792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:47,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3441 Valid, 242 Invalid, 10466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 9792 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-09 19:24:47,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28204 states. [2024-11-09 19:24:47,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28204 to 22642. [2024-11-09 19:24:47,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22642 states, 22641 states have (on average 1.7300472593966698) internal successors, (39170), 22641 states have internal predecessors, (39170), 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) [2024-11-09 19:24:47,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22642 states to 22642 states and 39170 transitions. [2024-11-09 19:24:47,786 INFO L78 Accepts]: Start accepts. Automaton has 22642 states and 39170 transitions. Word has length 462 [2024-11-09 19:24:47,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:47,787 INFO L471 AbstractCegarLoop]: Abstraction has 22642 states and 39170 transitions. [2024-11-09 19:24:47,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 102.92307692307692) internal successors, (1338), 12 states have internal predecessors, (1338), 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) [2024-11-09 19:24:47,787 INFO L276 IsEmpty]: Start isEmpty. Operand 22642 states and 39170 transitions. [2024-11-09 19:24:47,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-09 19:24:47,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:47,805 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, 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, 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, 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] [2024-11-09 19:24:47,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:24:48,005 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,SelfDestructingSolverStorable17 [2024-11-09 19:24:48,006 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:48,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:48,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1802409718, now seen corresponding path program 1 times [2024-11-09 19:24:48,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:48,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055396083] [2024-11-09 19:24:48,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:48,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:48,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2024-11-09 19:24:48,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:48,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055396083] [2024-11-09 19:24:48,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055396083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:48,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:48,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:48,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448889646] [2024-11-09 19:24:48,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:48,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:48,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:48,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:48,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:48,446 INFO L87 Difference]: Start difference. First operand 22642 states and 39170 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2024-11-09 19:24:49,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:49,182 INFO L93 Difference]: Finished difference Result 43635 states and 75456 transitions. [2024-11-09 19:24:49,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:49,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 568 [2024-11-09 19:24:49,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:49,207 INFO L225 Difference]: With dead ends: 43635 [2024-11-09 19:24:49,207 INFO L226 Difference]: Without dead ends: 23217 [2024-11-09 19:24:49,221 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 [2024-11-09 19:24:49,222 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 225 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:49,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 141 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:24:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23217 states. [2024-11-09 19:24:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23217 to 15791. [2024-11-09 19:24:49,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15791 states, 15790 states have (on average 1.7276124129195694) internal successors, (27279), 15790 states have internal predecessors, (27279), 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) [2024-11-09 19:24:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15791 states to 15791 states and 27279 transitions. [2024-11-09 19:24:49,379 INFO L78 Accepts]: Start accepts. Automaton has 15791 states and 27279 transitions. Word has length 568 [2024-11-09 19:24:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:49,379 INFO L471 AbstractCegarLoop]: Abstraction has 15791 states and 27279 transitions. [2024-11-09 19:24:49,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2024-11-09 19:24:49,380 INFO L276 IsEmpty]: Start isEmpty. Operand 15791 states and 27279 transitions. [2024-11-09 19:24:49,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2024-11-09 19:24:49,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:49,393 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, 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, 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, 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] [2024-11-09 19:24:49,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:24:49,393 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:49,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash -1775311661, now seen corresponding path program 1 times [2024-11-09 19:24:49,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:49,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739078758] [2024-11-09 19:24:49,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:49,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:49,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1094 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2024-11-09 19:24:49,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:49,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739078758] [2024-11-09 19:24:49,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739078758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:49,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:49,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:49,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402475547] [2024-11-09 19:24:49,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:49,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:49,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:49,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:49,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:49,637 INFO L87 Difference]: Start difference. First operand 15791 states and 27279 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2024-11-09 19:24:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:50,311 INFO L93 Difference]: Finished difference Result 31946 states and 55165 transitions. [2024-11-09 19:24:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:50,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 569 [2024-11-09 19:24:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:50,327 INFO L225 Difference]: With dead ends: 31946 [2024-11-09 19:24:50,327 INFO L226 Difference]: Without dead ends: 16527 [2024-11-09 19:24:50,336 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 [2024-11-09 19:24:50,336 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 219 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:50,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 133 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:24:50,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16527 states. [2024-11-09 19:24:50,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16527 to 15041. [2024-11-09 19:24:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15041 states, 15040 states have (on average 1.7232047872340426) internal successors, (25917), 15040 states have internal predecessors, (25917), 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) [2024-11-09 19:24:50,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15041 states to 15041 states and 25917 transitions. [2024-11-09 19:24:50,473 INFO L78 Accepts]: Start accepts. Automaton has 15041 states and 25917 transitions. Word has length 569 [2024-11-09 19:24:50,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:50,474 INFO L471 AbstractCegarLoop]: Abstraction has 15041 states and 25917 transitions. [2024-11-09 19:24:50,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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) [2024-11-09 19:24:50,474 INFO L276 IsEmpty]: Start isEmpty. Operand 15041 states and 25917 transitions. [2024-11-09 19:24:50,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-11-09 19:24:50,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:50,487 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:50,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-09 19:24:50,487 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:50,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:50,487 INFO L85 PathProgramCache]: Analyzing trace with hash 653100847, now seen corresponding path program 1 times [2024-11-09 19:24:50,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:50,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384776793] [2024-11-09 19:24:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:50,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1198 backedges. 732 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2024-11-09 19:24:50,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:50,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384776793] [2024-11-09 19:24:50,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384776793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:50,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:50,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:50,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436219636] [2024-11-09 19:24:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:50,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:50,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:50,862 INFO L87 Difference]: Start difference. First operand 15041 states and 25917 transitions. Second operand has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-09 19:24:51,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:51,663 INFO L93 Difference]: Finished difference Result 28410 states and 48934 transitions. [2024-11-09 19:24:51,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:51,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 619 [2024-11-09 19:24:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:51,682 INFO L225 Difference]: With dead ends: 28410 [2024-11-09 19:24:51,683 INFO L226 Difference]: Without dead ends: 13926 [2024-11-09 19:24:51,692 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 [2024-11-09 19:24:51,693 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 309 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:51,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 441 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 19:24:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13926 states. [2024-11-09 19:24:51,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13926 to 13926. [2024-11-09 19:24:51,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13926 states, 13925 states have (on average 1.7155475763016157) internal successors, (23889), 13925 states have internal predecessors, (23889), 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) [2024-11-09 19:24:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13926 states to 13926 states and 23889 transitions. [2024-11-09 19:24:51,882 INFO L78 Accepts]: Start accepts. Automaton has 13926 states and 23889 transitions. Word has length 619 [2024-11-09 19:24:51,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:51,883 INFO L471 AbstractCegarLoop]: Abstraction has 13926 states and 23889 transitions. [2024-11-09 19:24:51,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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) [2024-11-09 19:24:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 13926 states and 23889 transitions. [2024-11-09 19:24:51,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-09 19:24:51,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:24:51,903 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, 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, 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, 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] [2024-11-09 19:24:51,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 19:24:51,903 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:24:51,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:24:51,904 INFO L85 PathProgramCache]: Analyzing trace with hash 808647395, now seen corresponding path program 1 times [2024-11-09 19:24:51,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:24:51,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316816484] [2024-11-09 19:24:51,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:24:51,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:24:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:24:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1638 backedges. 1073 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-09 19:24:52,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:24:52,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316816484] [2024-11-09 19:24:52,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316816484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:24:52,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:24:52,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:24:52,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142544577] [2024-11-09 19:24:52,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:24:52,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:24:52,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:24:52,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:24:52,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:24:52,256 INFO L87 Difference]: Start difference. First operand 13926 states and 23889 transitions. Second operand has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2024-11-09 19:24:52,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:24:52,936 INFO L93 Difference]: Finished difference Result 27476 states and 47105 transitions. [2024-11-09 19:24:52,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:24:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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 703 [2024-11-09 19:24:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:24:52,939 INFO L225 Difference]: With dead ends: 27476 [2024-11-09 19:24:52,939 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:24:52,948 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 [2024-11-09 19:24:52,948 INFO L432 NwaCegarLoop]: 412 mSDtfsCounter, 171 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:24:52,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 428 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 19:24:52,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:24:52,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:24:52,949 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) [2024-11-09 19:24:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:24:52,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 703 [2024-11-09 19:24:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:24:52,950 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:24:52,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2024-11-09 19:24:52,950 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:24:52,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:24:52,952 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:24:52,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-09 19:24:52,954 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:24:52,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:24:59,845 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:24:59,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:24:59 BoogieIcfgContainer [2024-11-09 19:24:59,866 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:24:59,867 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:24:59,867 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:24:59,867 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:24:59,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:24:01" (3/4) ... [2024-11-09 19:24:59,870 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:24:59,893 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-09 19:24:59,895 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:24:59,896 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:24:59,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:25:00,070 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:25:00,070 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:25:00,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:25:00,071 INFO L158 Benchmark]: Toolchain (without parser) took 61385.17ms. Allocated memory was 130.0MB in the beginning and 4.1GB in the end (delta: 3.9GB). Free memory was 55.0MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2024-11-09 19:25:00,071 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:25:00,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.50ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 114.5MB in the end (delta: -59.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-09 19:25:00,071 INFO L158 Benchmark]: Boogie Procedure Inliner took 140.83ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 96.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 19:25:00,071 INFO L158 Benchmark]: Boogie Preprocessor took 189.07ms. Allocated memory is still 184.5MB. Free memory was 96.6MB in the beginning and 72.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 19:25:00,072 INFO L158 Benchmark]: IcfgBuilder took 2129.22ms. Allocated memory was 184.5MB in the beginning and 283.1MB in the end (delta: 98.6MB). Free memory was 72.5MB in the beginning and 207.0MB in the end (delta: -134.5MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. [2024-11-09 19:25:00,072 INFO L158 Benchmark]: TraceAbstraction took 57917.95ms. Allocated memory was 283.1MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 206.0MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2024-11-09 19:25:00,072 INFO L158 Benchmark]: Witness Printer took 203.66ms. Allocated memory is still 4.1GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 19:25:00,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.50ms. Allocated memory was 130.0MB in the beginning and 184.5MB in the end (delta: 54.5MB). Free memory was 55.0MB in the beginning and 114.5MB in the end (delta: -59.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 140.83ms. Allocated memory is still 184.5MB. Free memory was 114.5MB in the beginning and 96.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 189.07ms. Allocated memory is still 184.5MB. Free memory was 96.6MB in the beginning and 72.5MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * IcfgBuilder took 2129.22ms. Allocated memory was 184.5MB in the beginning and 283.1MB in the end (delta: 98.6MB). Free memory was 72.5MB in the beginning and 207.0MB in the end (delta: -134.5MB). Peak memory consumption was 54.4MB. Max. memory is 16.1GB. * TraceAbstraction took 57917.95ms. Allocated memory was 283.1MB in the beginning and 4.1GB in the end (delta: 3.8GB). Free memory was 206.0MB in the beginning and 1.3GB in the end (delta: -1.1GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Witness Printer took 203.66ms. Allocated memory is still 4.1GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. 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: 151]: 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, 286 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.9s, OverallIterations: 22, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 29.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11064 SdHoareTripleChecker+Valid, 26.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11064 mSDsluCounter, 5650 SdHoareTripleChecker+Invalid, 21.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 872 mSDsCounter, 2841 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32186 IncrementalHoareTripleChecker+Invalid, 35027 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2841 mSolverCounterUnsat, 4778 mSDtfsCounter, 32186 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1339 GetRequests, 1283 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23794occurred in iteration=15, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 33688 StatesRemovedByMinimization, 19 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 7830 NumberOfCodeBlocks, 7830 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 8267 ConstructedInterpolants, 0 QuantifiedInterpolants, 35020 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1061 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 25 InterpolantComputations, 21 PerfectInterpolantSequences, 8887/9854 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: 1044]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:25:00,105 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