./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem14_label48.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 8261a53c19f43c038d6c9bf7efdae8a565c27af3d0b11334f16494326c28bf76 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:06:02,031 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:06:02,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:06:02,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:06:02,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:06:02,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:06:02,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:06:02,145 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:06:02,146 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:06:02,151 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:06:02,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:06:02,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:06:02,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:06:02,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:06:02,153 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:06:02,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:06:02,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:06:02,154 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:06:02,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:06:02,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:06:02,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:06:02,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:06:02,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:06:02,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:06:02,157 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:06:02,157 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:06:02,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:06:02,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:06:02,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:06:02,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:06:02,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:06:02,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:06:02,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:06:02,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:06:02,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:06:02,161 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:06:02,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:06:02,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:06:02,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:06:02,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:06:02,162 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:06:02,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:06:02,163 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8261a53c19f43c038d6c9bf7efdae8a565c27af3d0b11334f16494326c28bf76 [2024-11-16 04:06:02,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:06:02,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:06:02,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:06:02,430 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:06:02,431 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:06:02,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2024-11-16 04:06:03,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:06:04,139 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:06:04,139 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c [2024-11-16 04:06:04,153 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2916caae3/502a982ffad1426c9d8fbea899c31e99/FLAG1ebd2e82d [2024-11-16 04:06:04,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2916caae3/502a982ffad1426c9d8fbea899c31e99 [2024-11-16 04:06:04,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:06:04,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:06:04,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:06:04,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:06:04,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:06:04,456 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:06:04" (1/1) ... [2024-11-16 04:06:04,457 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9e572b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:04, skipping insertion in model container [2024-11-16 04:06:04,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:06:04" (1/1) ... [2024-11-16 04:06:04,509 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:06:04,773 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2024-11-16 04:06:05,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:06:05,041 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:06:05,067 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label48.c[4040,4053] [2024-11-16 04:06:05,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:06:05,159 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:06:05,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05 WrapperNode [2024-11-16 04:06:05,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:06:05,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:06:05,161 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:06:05,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:06:05,173 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,261 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2024-11-16 04:06:05,262 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:06:05,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:06:05,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:06:05,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:06:05,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,325 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:06:05,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,389 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:06:05,391 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:06:05,391 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:06:05,391 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:06:05,392 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (1/1) ... [2024-11-16 04:06:05,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:06:05,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:05,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:06:05,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:06:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:06:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:06:05,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:06:05,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:06:05,552 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:06:05,554 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:06:06,791 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-16 04:06:06,792 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:06:06,812 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:06:06,813 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:06:06,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:06:06 BoogieIcfgContainer [2024-11-16 04:06:06,813 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:06:06,816 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:06:06,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:06:06,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:06:06,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:06:04" (1/3) ... [2024-11-16 04:06:06,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a02f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:06:06, skipping insertion in model container [2024-11-16 04:06:06,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:06:05" (2/3) ... [2024-11-16 04:06:06,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a02f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:06:06, skipping insertion in model container [2024-11-16 04:06:06,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:06:06" (3/3) ... [2024-11-16 04:06:06,824 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label48.c [2024-11-16 04:06:06,841 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:06:06,841 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:06:06,915 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:06:06,924 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;@560afe4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:06:06,925 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:06:06,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:06,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-16 04:06:06,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:06,938 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] [2024-11-16 04:06:06,938 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:06,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:06,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1552575688, now seen corresponding path program 1 times [2024-11-16 04:06:06,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:06,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130700274] [2024-11-16 04:06:06,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:06,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:06:07,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:07,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130700274] [2024-11-16 04:06:07,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130700274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:07,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:07,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:06:07,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443099934] [2024-11-16 04:06:07,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:07,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:07,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:07,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:07,329 INFO L87 Difference]: Start difference. First operand has 248 states, 246 states have (on average 1.7276422764227641) internal successors, (425), 247 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:08,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:08,355 INFO L93 Difference]: Finished difference Result 691 states and 1222 transitions. [2024-11-16 04:06:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:08,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2024-11-16 04:06:08,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:08,370 INFO L225 Difference]: With dead ends: 691 [2024-11-16 04:06:08,371 INFO L226 Difference]: Without dead ends: 363 [2024-11-16 04:06:08,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:08,378 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 180 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:08,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 143 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 04:06:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-16 04:06:08,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-16 04:06:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.4171270718232045) internal successors, (513), 362 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:08,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 513 transitions. [2024-11-16 04:06:08,454 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 513 transitions. Word has length 40 [2024-11-16 04:06:08,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:08,455 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 513 transitions. [2024-11-16 04:06:08,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 513 transitions. [2024-11-16 04:06:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-16 04:06:08,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:08,461 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:08,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:06:08,462 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:08,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:08,463 INFO L85 PathProgramCache]: Analyzing trace with hash 909315041, now seen corresponding path program 1 times [2024-11-16 04:06:08,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:08,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958324665] [2024-11-16 04:06:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:08,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:08,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:08,901 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:06:08,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:08,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958324665] [2024-11-16 04:06:08,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958324665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:08,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:08,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:08,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259592929] [2024-11-16 04:06:08,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:08,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:06:08,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:08,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:06:08,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:08,910 INFO L87 Difference]: Start difference. First operand 363 states and 513 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:09,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:09,885 INFO L93 Difference]: Finished difference Result 1082 states and 1454 transitions. [2024-11-16 04:06:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:09,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2024-11-16 04:06:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:09,890 INFO L225 Difference]: With dead ends: 1082 [2024-11-16 04:06:09,890 INFO L226 Difference]: Without dead ends: 721 [2024-11-16 04:06:09,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:06:09,896 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 421 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:09,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 128 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:06:09,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-16 04:06:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-11-16 04:06:09,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 720 states have (on average 1.2597222222222222) internal successors, (907), 720 states have internal predecessors, (907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:09,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 907 transitions. [2024-11-16 04:06:09,939 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 907 transitions. Word has length 120 [2024-11-16 04:06:09,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:09,939 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 907 transitions. [2024-11-16 04:06:09,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:09,940 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 907 transitions. [2024-11-16 04:06:09,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-16 04:06:09,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:09,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:09,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:06:09,945 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:09,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash -852212032, now seen corresponding path program 1 times [2024-11-16 04:06:09,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:09,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060230137] [2024-11-16 04:06:09,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:09,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:10,261 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-16 04:06:10,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:10,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060230137] [2024-11-16 04:06:10,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060230137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851703863] [2024-11-16 04:06:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:10,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:10,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:10,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:10,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 04:06:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:10,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:10,356 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:10,604 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-16 04:06:10,604 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:10,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851703863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:10,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:10,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 04:06:10,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581244358] [2024-11-16 04:06:10,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:10,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:10,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:10,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:10,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:06:10,607 INFO L87 Difference]: Start difference. First operand 721 states and 907 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:11,230 INFO L93 Difference]: Finished difference Result 1261 states and 1621 transitions. [2024-11-16 04:06:11,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:11,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 146 [2024-11-16 04:06:11,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:11,235 INFO L225 Difference]: With dead ends: 1261 [2024-11-16 04:06:11,236 INFO L226 Difference]: Without dead ends: 1258 [2024-11-16 04:06:11,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:06:11,237 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 91 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:11,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 40 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:06:11,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1258 states. [2024-11-16 04:06:11,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1258 to 900. [2024-11-16 04:06:11,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 900 states, 899 states have (on average 1.3348164627363737) internal successors, (1200), 899 states have internal predecessors, (1200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1200 transitions. [2024-11-16 04:06:11,258 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1200 transitions. Word has length 146 [2024-11-16 04:06:11,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:11,259 INFO L471 AbstractCegarLoop]: Abstraction has 900 states and 1200 transitions. [2024-11-16 04:06:11,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:11,259 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1200 transitions. [2024-11-16 04:06:11,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-16 04:06:11,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:11,263 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:06:11,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 04:06:11,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:11,470 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:11,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1440968753, now seen corresponding path program 1 times [2024-11-16 04:06:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:11,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031908290] [2024-11-16 04:06:11,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:11,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 04:06:11,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:11,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031908290] [2024-11-16 04:06:11,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031908290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:11,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:11,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:11,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073549425] [2024-11-16 04:06:11,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:11,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:06:11,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:11,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:06:11,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:11,755 INFO L87 Difference]: Start difference. First operand 900 states and 1200 transitions. Second operand has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:12,478 INFO L93 Difference]: Finished difference Result 2007 states and 2643 transitions. [2024-11-16 04:06:12,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:12,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 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 201 [2024-11-16 04:06:12,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:12,483 INFO L225 Difference]: With dead ends: 2007 [2024-11-16 04:06:12,483 INFO L226 Difference]: Without dead ends: 1079 [2024-11-16 04:06:12,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:12,485 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 116 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:12,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 125 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:06:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1079 states. [2024-11-16 04:06:12,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1079 to 1079. [2024-11-16 04:06:12,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.179035250463822) internal successors, (1271), 1078 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:12,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1271 transitions. [2024-11-16 04:06:12,506 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1271 transitions. Word has length 201 [2024-11-16 04:06:12,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:12,506 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1271 transitions. [2024-11-16 04:06:12,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.75) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1271 transitions. [2024-11-16 04:06:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-16 04:06:12,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:12,509 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, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:06:12,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:06:12,510 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:12,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:12,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1642559613, now seen corresponding path program 1 times [2024-11-16 04:06:12,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:12,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040588946] [2024-11-16 04:06:12,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:12,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 73 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:06:12,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:12,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040588946] [2024-11-16 04:06:12,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040588946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:12,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044292501] [2024-11-16 04:06:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:12,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:12,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:12,845 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:12,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 04:06:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:12,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:12,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:13,014 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-16 04:06:13,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:13,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044292501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:13,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:13,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:06:13,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019200958] [2024-11-16 04:06:13,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:13,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:13,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:13,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:13,018 INFO L87 Difference]: Start difference. First operand 1079 states and 1271 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:13,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:13,613 INFO L93 Difference]: Finished difference Result 2514 states and 3049 transitions. [2024-11-16 04:06:13,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:13,614 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 213 [2024-11-16 04:06:13,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:13,619 INFO L225 Difference]: With dead ends: 2514 [2024-11-16 04:06:13,620 INFO L226 Difference]: Without dead ends: 1437 [2024-11-16 04:06:13,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:13,622 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 145 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:13,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 89 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:06:13,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-16 04:06:13,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1079. [2024-11-16 04:06:13,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1079 states, 1078 states have (on average 1.179035250463822) internal successors, (1271), 1078 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:13,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1079 states to 1079 states and 1271 transitions. [2024-11-16 04:06:13,646 INFO L78 Accepts]: Start accepts. Automaton has 1079 states and 1271 transitions. Word has length 213 [2024-11-16 04:06:13,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:13,647 INFO L471 AbstractCegarLoop]: Abstraction has 1079 states and 1271 transitions. [2024-11-16 04:06:13,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:13,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1079 states and 1271 transitions. [2024-11-16 04:06:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-16 04:06:13,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:13,650 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:06:13,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 04:06:13,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:13,851 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:13,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:13,852 INFO L85 PathProgramCache]: Analyzing trace with hash 957952466, now seen corresponding path program 1 times [2024-11-16 04:06:13,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:13,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099114727] [2024-11-16 04:06:13,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:13,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:06:14,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:14,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099114727] [2024-11-16 04:06:14,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099114727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:14,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:14,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:14,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557879437] [2024-11-16 04:06:14,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:14,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:14,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:14,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:14,120 INFO L87 Difference]: Start difference. First operand 1079 states and 1271 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:14,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:14,672 INFO L93 Difference]: Finished difference Result 2693 states and 3230 transitions. [2024-11-16 04:06:14,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:14,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 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 216 [2024-11-16 04:06:14,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:14,678 INFO L225 Difference]: With dead ends: 2693 [2024-11-16 04:06:14,678 INFO L226 Difference]: Without dead ends: 1616 [2024-11-16 04:06:14,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:14,682 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:14,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 62 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:06:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-16 04:06:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1437. [2024-11-16 04:06:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1437 states, 1436 states have (on average 1.1552924791086352) internal successors, (1659), 1436 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:14,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1437 states to 1437 states and 1659 transitions. [2024-11-16 04:06:14,707 INFO L78 Accepts]: Start accepts. Automaton has 1437 states and 1659 transitions. Word has length 216 [2024-11-16 04:06:14,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:14,708 INFO L471 AbstractCegarLoop]: Abstraction has 1437 states and 1659 transitions. [2024-11-16 04:06:14,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1437 states and 1659 transitions. [2024-11-16 04:06:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-16 04:06:14,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:14,712 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:14,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:06:14,714 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:14,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1015383188, now seen corresponding path program 1 times [2024-11-16 04:06:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:14,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587071558] [2024-11-16 04:06:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:15,179 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 165 proven. 132 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-16 04:06:15,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587071558] [2024-11-16 04:06:15,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587071558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:15,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385017456] [2024-11-16 04:06:15,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:15,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:15,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:15,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 04:06:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:15,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:15,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:15,670 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-16 04:06:15,670 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:15,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385017456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:15,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:15,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-16 04:06:15,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744550054] [2024-11-16 04:06:15,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:15,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:15,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:15,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:15,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:15,676 INFO L87 Difference]: Start difference. First operand 1437 states and 1659 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:16,240 INFO L93 Difference]: Finished difference Result 3230 states and 3808 transitions. [2024-11-16 04:06:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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 336 [2024-11-16 04:06:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:16,247 INFO L225 Difference]: With dead ends: 3230 [2024-11-16 04:06:16,247 INFO L226 Difference]: Without dead ends: 1974 [2024-11-16 04:06:16,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:16,250 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 83 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:16,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 50 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:06:16,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-16 04:06:16,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1795. [2024-11-16 04:06:16,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1794 states have (on average 1.1393534002229655) internal successors, (2044), 1794 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 2044 transitions. [2024-11-16 04:06:16,274 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 2044 transitions. Word has length 336 [2024-11-16 04:06:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:16,275 INFO L471 AbstractCegarLoop]: Abstraction has 1795 states and 2044 transitions. [2024-11-16 04:06:16,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 2044 transitions. [2024-11-16 04:06:16,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-11-16 04:06:16,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:16,280 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 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] [2024-11-16 04:06:16,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 04:06:16,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:16,481 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:16,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:16,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1970644362, now seen corresponding path program 1 times [2024-11-16 04:06:16,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:16,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456447491] [2024-11-16 04:06:16,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:16,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:16,862 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 379 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-11-16 04:06:16,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:16,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456447491] [2024-11-16 04:06:16,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456447491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:16,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:16,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:16,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734111665] [2024-11-16 04:06:16,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:16,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:06:16,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:16,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:06:16,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:16,867 INFO L87 Difference]: Start difference. First operand 1795 states and 2044 transitions. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:17,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:17,506 INFO L93 Difference]: Finished difference Result 3618 states and 4139 transitions. [2024-11-16 04:06:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:17,507 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 414 [2024-11-16 04:06:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:17,513 INFO L225 Difference]: With dead ends: 3618 [2024-11-16 04:06:17,514 INFO L226 Difference]: Without dead ends: 1974 [2024-11-16 04:06:17,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:17,519 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 125 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:17,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 23 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:06:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2024-11-16 04:06:17,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1795. [2024-11-16 04:06:17,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1795 states, 1794 states have (on average 1.089186176142698) internal successors, (1954), 1794 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:17,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1795 states to 1795 states and 1954 transitions. [2024-11-16 04:06:17,550 INFO L78 Accepts]: Start accepts. Automaton has 1795 states and 1954 transitions. Word has length 414 [2024-11-16 04:06:17,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:17,554 INFO L471 AbstractCegarLoop]: Abstraction has 1795 states and 1954 transitions. [2024-11-16 04:06:17,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 3 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:17,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1795 states and 1954 transitions. [2024-11-16 04:06:17,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-16 04:06:17,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:17,560 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:17,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:06:17,561 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:17,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash -288354875, now seen corresponding path program 1 times [2024-11-16 04:06:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:17,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686841998] [2024-11-16 04:06:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:17,962 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 356 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2024-11-16 04:06:17,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:17,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686841998] [2024-11-16 04:06:17,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686841998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:17,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:17,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:17,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697326429] [2024-11-16 04:06:17,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:17,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:17,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:17,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:17,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:17,967 INFO L87 Difference]: Start difference. First operand 1795 states and 1954 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:18,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:18,459 INFO L93 Difference]: Finished difference Result 4304 states and 4741 transitions. [2024-11-16 04:06:18,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:18,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 437 [2024-11-16 04:06:18,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:18,468 INFO L225 Difference]: With dead ends: 4304 [2024-11-16 04:06:18,468 INFO L226 Difference]: Without dead ends: 2690 [2024-11-16 04:06:18,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:18,471 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 113 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:18,472 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 225 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:06:18,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2690 states. [2024-11-16 04:06:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2690 to 2332. [2024-11-16 04:06:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.084942084942085) internal successors, (2529), 2331 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:18,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2529 transitions. [2024-11-16 04:06:18,509 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2529 transitions. Word has length 437 [2024-11-16 04:06:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:18,509 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2529 transitions. [2024-11-16 04:06:18,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2529 transitions. [2024-11-16 04:06:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2024-11-16 04:06:18,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:18,517 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:18,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:06:18,517 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:18,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:18,518 INFO L85 PathProgramCache]: Analyzing trace with hash 2122896969, now seen corresponding path program 1 times [2024-11-16 04:06:18,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:18,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085979702] [2024-11-16 04:06:18,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:18,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 399 proven. 198 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-16 04:06:19,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:19,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085979702] [2024-11-16 04:06:19,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085979702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:19,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860920192] [2024-11-16 04:06:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:19,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:19,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 04:06:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:19,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:19,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:19,376 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-16 04:06:19,377 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:19,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860920192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:19,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:19,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:06:19,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078739178] [2024-11-16 04:06:19,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:19,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:19,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:19,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:19,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:19,379 INFO L87 Difference]: Start difference. First operand 2332 states and 2529 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:19,884 INFO L93 Difference]: Finished difference Result 5020 states and 5461 transitions. [2024-11-16 04:06:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:19,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 440 [2024-11-16 04:06:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:19,892 INFO L225 Difference]: With dead ends: 5020 [2024-11-16 04:06:19,893 INFO L226 Difference]: Without dead ends: 2511 [2024-11-16 04:06:19,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:19,897 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 143 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:19,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 252 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 04:06:19,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-16 04:06:19,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2332. [2024-11-16 04:06:19,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.0802230802230801) internal successors, (2518), 2331 states have internal predecessors, (2518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2518 transitions. [2024-11-16 04:06:19,943 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2518 transitions. Word has length 440 [2024-11-16 04:06:19,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:19,944 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2518 transitions. [2024-11-16 04:06:19,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2518 transitions. [2024-11-16 04:06:19,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2024-11-16 04:06:19,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:19,949 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:19,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 04:06:20,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:20,152 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:20,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:20,153 INFO L85 PathProgramCache]: Analyzing trace with hash 755446763, now seen corresponding path program 1 times [2024-11-16 04:06:20,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:20,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326891381] [2024-11-16 04:06:20,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:20,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:20,829 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 251 proven. 198 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-16 04:06:20,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:20,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326891381] [2024-11-16 04:06:20,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326891381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:20,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674671342] [2024-11-16 04:06:20,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:20,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:20,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:20,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:20,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 04:06:20,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:20,978 INFO L255 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:20,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:21,040 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2024-11-16 04:06:21,040 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:21,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674671342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:21,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:21,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-16 04:06:21,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190218864] [2024-11-16 04:06:21,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:21,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:21,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:21,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:21,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:21,043 INFO L87 Difference]: Start difference. First operand 2332 states and 2518 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:21,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:21,509 INFO L93 Difference]: Finished difference Result 5020 states and 5492 transitions. [2024-11-16 04:06:21,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:21,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 452 [2024-11-16 04:06:21,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:21,521 INFO L225 Difference]: With dead ends: 5020 [2024-11-16 04:06:21,522 INFO L226 Difference]: Without dead ends: 3048 [2024-11-16 04:06:21,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 451 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 04:06:21,525 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 143 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:21,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 246 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:06:21,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3048 states. [2024-11-16 04:06:21,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3048 to 2690. [2024-11-16 04:06:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2690 states, 2689 states have (on average 1.0821866865005578) internal successors, (2910), 2689 states have internal predecessors, (2910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 2910 transitions. [2024-11-16 04:06:21,568 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 2910 transitions. Word has length 452 [2024-11-16 04:06:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:21,569 INFO L471 AbstractCegarLoop]: Abstraction has 2690 states and 2910 transitions. [2024-11-16 04:06:21,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 2910 transitions. [2024-11-16 04:06:21,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-11-16 04:06:21,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:21,576 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-16 04:06:21,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 04:06:21,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-16 04:06:21,776 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:21,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1974017790, now seen corresponding path program 1 times [2024-11-16 04:06:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:21,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125980254] [2024-11-16 04:06:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:21,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:22,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 795 proven. 2 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:22,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:22,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125980254] [2024-11-16 04:06:22,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125980254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:22,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603513338] [2024-11-16 04:06:22,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:22,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:22,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:22,361 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:22,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 04:06:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:22,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 04:06:22,547 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:24,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1151 backedges. 797 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:24,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:24,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603513338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:24,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:24,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-16 04:06:24,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103453965] [2024-11-16 04:06:24,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:24,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:06:24,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:24,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:06:24,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:24,552 INFO L87 Difference]: Start difference. First operand 2690 states and 2910 transitions. Second operand has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:25,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:25,225 INFO L93 Difference]: Finished difference Result 5199 states and 5641 transitions. [2024-11-16 04:06:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:25,226 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 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 570 [2024-11-16 04:06:25,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:25,233 INFO L225 Difference]: With dead ends: 5199 [2024-11-16 04:06:25,233 INFO L226 Difference]: Without dead ends: 2511 [2024-11-16 04:06:25,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:25,237 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 220 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:25,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 51 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:06:25,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2024-11-16 04:06:25,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2332. [2024-11-16 04:06:25,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2332 states, 2331 states have (on average 1.054912054912055) internal successors, (2459), 2331 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:25,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2332 states to 2332 states and 2459 transitions. [2024-11-16 04:06:25,271 INFO L78 Accepts]: Start accepts. Automaton has 2332 states and 2459 transitions. Word has length 570 [2024-11-16 04:06:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:25,272 INFO L471 AbstractCegarLoop]: Abstraction has 2332 states and 2459 transitions. [2024-11-16 04:06:25,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.8) internal successors, (324), 4 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 2332 states and 2459 transitions. [2024-11-16 04:06:25,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-16 04:06:25,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:25,277 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:25,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 04:06:25,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:25,478 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:25,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:25,478 INFO L85 PathProgramCache]: Analyzing trace with hash 38632319, now seen corresponding path program 1 times [2024-11-16 04:06:25,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:25,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195818087] [2024-11-16 04:06:25,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:25,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:26,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 711 proven. 93 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:26,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195818087] [2024-11-16 04:06:26,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195818087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:26,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229636807] [2024-11-16 04:06:26,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:26,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:26,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:26,075 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:26,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 04:06:26,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:26,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 04:06:26,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 804 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:26,495 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 04:06:26,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229636807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:26,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 04:06:26,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 04:06:26,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286174311] [2024-11-16 04:06:26,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:26,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:26,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:26,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:26,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:26,497 INFO L87 Difference]: Start difference. First operand 2332 states and 2459 transitions. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:26,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:26,842 INFO L93 Difference]: Finished difference Result 5378 states and 5689 transitions. [2024-11-16 04:06:26,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:26,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 626 [2024-11-16 04:06:26,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:26,851 INFO L225 Difference]: With dead ends: 5378 [2024-11-16 04:06:26,852 INFO L226 Difference]: Without dead ends: 3227 [2024-11-16 04:06:26,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:26,855 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:26,856 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 40 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:26,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2024-11-16 04:06:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3227. [2024-11-16 04:06:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3227 states, 3226 states have (on average 1.0492870427774335) internal successors, (3385), 3226 states have internal predecessors, (3385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3227 states to 3227 states and 3385 transitions. [2024-11-16 04:06:26,905 INFO L78 Accepts]: Start accepts. Automaton has 3227 states and 3385 transitions. Word has length 626 [2024-11-16 04:06:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 3227 states and 3385 transitions. [2024-11-16 04:06:26,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 3227 states and 3385 transitions. [2024-11-16 04:06:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2024-11-16 04:06:26,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:26,914 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:26,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 04:06:27,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:27,115 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:27,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:27,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1779332100, now seen corresponding path program 1 times [2024-11-16 04:06:27,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:27,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816460443] [2024-11-16 04:06:27,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:27,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:27,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:27,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 1250 proven. 156 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:27,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816460443] [2024-11-16 04:06:27,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816460443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:27,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770383437] [2024-11-16 04:06:27,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:27,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:27,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:27,674 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:27,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-16 04:06:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:27,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 965 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 04:06:27,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:28,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 1250 proven. 156 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:28,216 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:06:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1760 backedges. 1250 proven. 156 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2024-11-16 04:06:28,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770383437] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 04:06:28,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 04:06:28,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-16 04:06:28,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135634307] [2024-11-16 04:06:28,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 04:06:28,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 04:06:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:28,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 04:06:28,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:28,567 INFO L87 Difference]: Start difference. First operand 3227 states and 3385 transitions. Second operand has 6 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:29,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:29,347 INFO L93 Difference]: Finished difference Result 7168 states and 7542 transitions. [2024-11-16 04:06:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 04:06:29,348 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 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 782 [2024-11-16 04:06:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:29,357 INFO L225 Difference]: With dead ends: 7168 [2024-11-16 04:06:29,357 INFO L226 Difference]: Without dead ends: 4122 [2024-11-16 04:06:29,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1566 GetRequests, 1562 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:06:29,361 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 1220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:29,362 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 53 Invalid, 1220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:06:29,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2024-11-16 04:06:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 3764. [2024-11-16 04:06:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3764 states, 3763 states have (on average 1.0523518469306405) internal successors, (3960), 3763 states have internal predecessors, (3960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3764 states to 3764 states and 3960 transitions. [2024-11-16 04:06:29,435 INFO L78 Accepts]: Start accepts. Automaton has 3764 states and 3960 transitions. Word has length 782 [2024-11-16 04:06:29,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:29,438 INFO L471 AbstractCegarLoop]: Abstraction has 3764 states and 3960 transitions. [2024-11-16 04:06:29,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 144.83333333333334) internal successors, (869), 6 states have internal predecessors, (869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:29,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3764 states and 3960 transitions. [2024-11-16 04:06:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 835 [2024-11-16 04:06:29,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:29,446 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:29,464 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-16 04:06:29,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-16 04:06:29,647 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:29,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1660069381, now seen corresponding path program 1 times [2024-11-16 04:06:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:29,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276654199] [2024-11-16 04:06:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:30,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2238 backedges. 1686 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-16 04:06:30,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:30,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276654199] [2024-11-16 04:06:30,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276654199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:30,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:30,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:30,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705984115] [2024-11-16 04:06:30,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:30,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:30,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:30,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:30,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:30,275 INFO L87 Difference]: Start difference. First operand 3764 states and 3960 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:30,618 INFO L93 Difference]: Finished difference Result 7526 states and 7919 transitions. [2024-11-16 04:06:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:30,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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 834 [2024-11-16 04:06:30,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:30,632 INFO L225 Difference]: With dead ends: 7526 [2024-11-16 04:06:30,633 INFO L226 Difference]: Without dead ends: 3943 [2024-11-16 04:06:30,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:30,639 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 52 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:30,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 223 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:30,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2024-11-16 04:06:30,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3943. [2024-11-16 04:06:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3942 states have (on average 1.0469304921359717) internal successors, (4127), 3942 states have internal predecessors, (4127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:30,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 4127 transitions. [2024-11-16 04:06:30,684 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 4127 transitions. Word has length 834 [2024-11-16 04:06:30,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:30,685 INFO L471 AbstractCegarLoop]: Abstraction has 3943 states and 4127 transitions. [2024-11-16 04:06:30,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:30,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 4127 transitions. [2024-11-16 04:06:30,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2024-11-16 04:06:30,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:30,693 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:30,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 04:06:30,693 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:30,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1244312172, now seen corresponding path program 1 times [2024-11-16 04:06:30,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:30,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221902150] [2024-11-16 04:06:30,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:30,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:31,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2234 backedges. 1434 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-16 04:06:31,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:31,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221902150] [2024-11-16 04:06:31,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221902150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:31,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:31,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:31,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736707074] [2024-11-16 04:06:31,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:31,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:31,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:31,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:31,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:31,025 INFO L87 Difference]: Start difference. First operand 3943 states and 4127 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:31,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:31,344 INFO L93 Difference]: Finished difference Result 8421 states and 8853 transitions. [2024-11-16 04:06:31,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:31,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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 855 [2024-11-16 04:06:31,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:31,354 INFO L225 Difference]: With dead ends: 8421 [2024-11-16 04:06:31,354 INFO L226 Difference]: Without dead ends: 4659 [2024-11-16 04:06:31,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:31,359 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 108 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:31,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 29 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:31,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4659 states. [2024-11-16 04:06:31,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4659 to 4480. [2024-11-16 04:06:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.0475552578700602) internal successors, (4692), 4479 states have internal predecessors, (4692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:31,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 4692 transitions. [2024-11-16 04:06:31,411 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 4692 transitions. Word has length 855 [2024-11-16 04:06:31,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:31,412 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 4692 transitions. [2024-11-16 04:06:31,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:31,412 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 4692 transitions. [2024-11-16 04:06:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2024-11-16 04:06:31,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:31,420 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:31,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 04:06:31,420 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:31,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:31,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1749087944, now seen corresponding path program 1 times [2024-11-16 04:06:31,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:31,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618526383] [2024-11-16 04:06:31,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:31,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:31,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2466 backedges. 1666 proven. 0 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2024-11-16 04:06:32,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:32,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618526383] [2024-11-16 04:06:32,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618526383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:32,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:32,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:32,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994970122] [2024-11-16 04:06:32,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:32,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:32,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:32,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:32,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:32,008 INFO L87 Difference]: Start difference. First operand 4480 states and 4692 transitions. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:32,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:32,337 INFO L93 Difference]: Finished difference Result 8600 states and 9021 transitions. [2024-11-16 04:06:32,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:32,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 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 912 [2024-11-16 04:06:32,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:32,345 INFO L225 Difference]: With dead ends: 8600 [2024-11-16 04:06:32,345 INFO L226 Difference]: Without dead ends: 4301 [2024-11-16 04:06:32,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:32,349 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 50 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:32,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 219 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:32,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-11-16 04:06:32,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4301. [2024-11-16 04:06:32,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 4300 states have (on average 1.0411627906976744) internal successors, (4477), 4300 states have internal predecessors, (4477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:32,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 4477 transitions. [2024-11-16 04:06:32,392 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 4477 transitions. Word has length 912 [2024-11-16 04:06:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:32,393 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 4477 transitions. [2024-11-16 04:06:32,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:32,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 4477 transitions. [2024-11-16 04:06:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2024-11-16 04:06:32,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:32,402 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:32,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 04:06:32,402 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:32,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:32,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1777029027, now seen corresponding path program 1 times [2024-11-16 04:06:32,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:32,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126341136] [2024-11-16 04:06:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:32,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:33,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 1802 proven. 73 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2024-11-16 04:06:33,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:33,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126341136] [2024-11-16 04:06:33,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126341136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:33,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879781970] [2024-11-16 04:06:33,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:33,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:33,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:33,389 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:33,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-16 04:06:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:33,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 04:06:33,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:34,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 1802 proven. 632 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-11-16 04:06:34,346 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:06:34,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2829 backedges. 1875 proven. 0 refuted. 0 times theorem prover too weak. 954 trivial. 0 not checked. [2024-11-16 04:06:34,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879781970] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:34,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:06:34,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-16 04:06:34,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896975852] [2024-11-16 04:06:34,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:34,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:06:34,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:34,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:06:34,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:34,806 INFO L87 Difference]: Start difference. First operand 4301 states and 4477 transitions. Second operand has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:35,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:35,257 INFO L93 Difference]: Finished difference Result 8958 states and 9337 transitions. [2024-11-16 04:06:35,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:35,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 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 951 [2024-11-16 04:06:35,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:35,264 INFO L225 Difference]: With dead ends: 8958 [2024-11-16 04:06:35,265 INFO L226 Difference]: Without dead ends: 4838 [2024-11-16 04:06:35,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1905 GetRequests, 1897 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:35,268 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 171 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:35,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 12 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:06:35,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2024-11-16 04:06:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4480. [2024-11-16 04:06:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.0419736548336682) internal successors, (4667), 4479 states have internal predecessors, (4667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 4667 transitions. [2024-11-16 04:06:35,317 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 4667 transitions. Word has length 951 [2024-11-16 04:06:35,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:35,318 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 4667 transitions. [2024-11-16 04:06:35,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 110.2) internal successors, (551), 5 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:35,318 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 4667 transitions. [2024-11-16 04:06:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1194 [2024-11-16 04:06:35,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:35,332 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-16 04:06:35,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-16 04:06:35,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 04:06:35,533 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:35,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:35,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1176486245, now seen corresponding path program 1 times [2024-11-16 04:06:35,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:35,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929236233] [2024-11-16 04:06:35,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:35,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:35,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:36,351 INFO L134 CoverageAnalysis]: Checked inductivity of 4622 backedges. 1909 proven. 0 refuted. 0 times theorem prover too weak. 2713 trivial. 0 not checked. [2024-11-16 04:06:36,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:36,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929236233] [2024-11-16 04:06:36,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929236233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:36,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:36,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:36,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092112528] [2024-11-16 04:06:36,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:36,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:06:36,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:36,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:06:36,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:36,353 INFO L87 Difference]: Start difference. First operand 4480 states and 4667 transitions. Second operand has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:36,717 INFO L93 Difference]: Finished difference Result 8779 states and 9152 transitions. [2024-11-16 04:06:36,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:06:36,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 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 1193 [2024-11-16 04:06:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:36,724 INFO L225 Difference]: With dead ends: 8779 [2024-11-16 04:06:36,724 INFO L226 Difference]: Without dead ends: 4480 [2024-11-16 04:06:36,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:06:36,728 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 53 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:36,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 226 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4480 states. [2024-11-16 04:06:36,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4480 to 4480. [2024-11-16 04:06:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4480 states, 4479 states have (on average 1.0401875418620228) internal successors, (4659), 4479 states have internal predecessors, (4659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:36,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4480 states to 4480 states and 4659 transitions. [2024-11-16 04:06:36,770 INFO L78 Accepts]: Start accepts. Automaton has 4480 states and 4659 transitions. Word has length 1193 [2024-11-16 04:06:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:36,771 INFO L471 AbstractCegarLoop]: Abstraction has 4480 states and 4659 transitions. [2024-11-16 04:06:36,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 4480 states and 4659 transitions. [2024-11-16 04:06:36,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2024-11-16 04:06:36,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:36,784 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:36,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 04:06:36,785 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:36,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1374082, now seen corresponding path program 1 times [2024-11-16 04:06:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426249645] [2024-11-16 04:06:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4637 backedges. 3453 proven. 73 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2024-11-16 04:06:38,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:38,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426249645] [2024-11-16 04:06:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426249645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702655823] [2024-11-16 04:06:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:38,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:38,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:38,163 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:38,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-16 04:06:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:38,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 04:06:38,480 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:39,170 INFO L134 CoverageAnalysis]: Checked inductivity of 4637 backedges. 3412 proven. 673 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-16 04:06:39,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:06:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4637 backedges. 3526 proven. 0 refuted. 0 times theorem prover too weak. 1111 trivial. 0 not checked. [2024-11-16 04:06:39,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702655823] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:39,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:06:39,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 6] total 9 [2024-11-16 04:06:39,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479626580] [2024-11-16 04:06:39,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:39,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:06:39,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:39,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:06:39,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:39,635 INFO L87 Difference]: Start difference. First operand 4480 states and 4659 transitions. Second operand has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:40,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:40,025 INFO L93 Difference]: Finished difference Result 9137 states and 9504 transitions. [2024-11-16 04:06:40,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:40,026 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 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 1197 [2024-11-16 04:06:40,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:40,056 INFO L225 Difference]: With dead ends: 9137 [2024-11-16 04:06:40,056 INFO L226 Difference]: Without dead ends: 4838 [2024-11-16 04:06:40,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2397 GetRequests, 2390 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-16 04:06:40,061 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 108 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:40,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 12 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 04:06:40,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2024-11-16 04:06:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4838. [2024-11-16 04:06:40,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4838 states, 4837 states have (on average 1.037419888360554) internal successors, (5018), 4837 states have internal predecessors, (5018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 5018 transitions. [2024-11-16 04:06:40,134 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 5018 transitions. Word has length 1197 [2024-11-16 04:06:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:40,135 INFO L471 AbstractCegarLoop]: Abstraction has 4838 states and 5018 transitions. [2024-11-16 04:06:40,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 135.8) internal successors, (679), 5 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:40,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 5018 transitions. [2024-11-16 04:06:40,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1487 [2024-11-16 04:06:40,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:40,168 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:40,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-16 04:06:40,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:40,370 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:40,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:40,370 INFO L85 PathProgramCache]: Analyzing trace with hash -118033595, now seen corresponding path program 1 times [2024-11-16 04:06:40,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:40,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113792166] [2024-11-16 04:06:40,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:40,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:42,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6973 backedges. 5445 proven. 307 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2024-11-16 04:06:42,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:42,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113792166] [2024-11-16 04:06:42,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113792166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:42,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002040418] [2024-11-16 04:06:42,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:42,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 04:06:42,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:06:42,321 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 04:06:42,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-16 04:06:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:42,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 1795 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 04:06:42,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 04:06:43,318 INFO L134 CoverageAnalysis]: Checked inductivity of 6973 backedges. 5116 proven. 723 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2024-11-16 04:06:43,318 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 04:06:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6973 backedges. 5280 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2024-11-16 04:06:43,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002040418] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-16 04:06:43,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-16 04:06:43,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 10 [2024-11-16 04:06:43,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417963275] [2024-11-16 04:06:43,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:43,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 04:06:43,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 04:06:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:06:43,789 INFO L87 Difference]: Start difference. First operand 4838 states and 5018 transitions. Second operand has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:44,144 INFO L93 Difference]: Finished difference Result 9495 states and 9854 transitions. [2024-11-16 04:06:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:44,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 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 1486 [2024-11-16 04:06:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:44,152 INFO L225 Difference]: With dead ends: 9495 [2024-11-16 04:06:44,152 INFO L226 Difference]: Without dead ends: 4838 [2024-11-16 04:06:44,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2976 GetRequests, 2968 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-16 04:06:44,158 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:44,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 14 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:44,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2024-11-16 04:06:44,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4659. [2024-11-16 04:06:44,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4659 states, 4658 states have (on average 1.0369257191927865) internal successors, (4830), 4658 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:44,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4659 states to 4659 states and 4830 transitions. [2024-11-16 04:06:44,206 INFO L78 Accepts]: Start accepts. Automaton has 4659 states and 4830 transitions. Word has length 1486 [2024-11-16 04:06:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:44,207 INFO L471 AbstractCegarLoop]: Abstraction has 4659 states and 4830 transitions. [2024-11-16 04:06:44,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 147.6) internal successors, (738), 5 states have internal predecessors, (738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4659 states and 4830 transitions. [2024-11-16 04:06:44,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1744 [2024-11-16 04:06:44,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:06:44,229 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:06:44,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-16 04:06:44,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-16 04:06:44,430 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:06:44,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:06:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1838974318, now seen corresponding path program 1 times [2024-11-16 04:06:44,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:06:44,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608293398] [2024-11-16 04:06:44,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:06:44,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:06:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:06:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9789 backedges. 517 proven. 0 refuted. 0 times theorem prover too weak. 9272 trivial. 0 not checked. [2024-11-16 04:06:45,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:06:45,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608293398] [2024-11-16 04:06:45,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608293398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:06:45,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:06:45,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:06:45,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471895394] [2024-11-16 04:06:45,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:06:45,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:06:45,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:06:45,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:06:45,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:45,527 INFO L87 Difference]: Start difference. First operand 4659 states and 4830 transitions. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:06:45,897 INFO L93 Difference]: Finished difference Result 9147 states and 9478 transitions. [2024-11-16 04:06:45,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:06:45,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 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 1743 [2024-11-16 04:06:45,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:06:45,899 INFO L225 Difference]: With dead ends: 9147 [2024-11-16 04:06:45,899 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:06:45,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:06:45,904 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:06:45,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 19 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 04:06:45,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:06:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:06:45,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:45,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:06:45,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1743 [2024-11-16 04:06:45,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:06:45,905 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:06:45,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:06:45,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:06:45,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:06:45,908 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:06:45,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 04:06:45,911 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] [2024-11-16 04:06:45,912 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:06:46,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:06:46,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:06:46 BoogieIcfgContainer [2024-11-16 04:06:46,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:06:46,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:06:46,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:06:46,233 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:06:46,233 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:06:06" (3/4) ... [2024-11-16 04:06:46,236 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:06:46,258 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-16 04:06:46,261 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:06:46,262 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:06:46,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:06:46,434 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:06:46,434 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:06:46,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:06:46,435 INFO L158 Benchmark]: Toolchain (without parser) took 41985.18ms. Allocated memory was 167.8MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 94.6MB in the beginning and 771.6MB in the end (delta: -677.0MB). Peak memory consumption was 530.1MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,435 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:06:46,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.26ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 114.9MB in the end (delta: -20.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.60ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 105.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,436 INFO L158 Benchmark]: Boogie Preprocessor took 127.01ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 93.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,436 INFO L158 Benchmark]: IcfgBuilder took 1422.48ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 93.3MB in the beginning and 130.9MB in the end (delta: -37.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,436 INFO L158 Benchmark]: TraceAbstraction took 39416.48ms. Allocated memory was 237.0MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 129.9MB in the beginning and 786.3MB in the end (delta: -656.5MB). Peak memory consumption was 481.3MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,437 INFO L158 Benchmark]: Witness Printer took 201.71ms. Allocated memory is still 1.4GB. Free memory was 786.3MB in the beginning and 771.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-16 04:06:46,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 167.8MB. Free memory is still 121.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.26ms. Allocated memory is still 167.8MB. Free memory was 94.5MB in the beginning and 114.9MB in the end (delta: -20.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.60ms. Allocated memory is still 167.8MB. Free memory was 114.9MB in the beginning and 105.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.01ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 93.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * IcfgBuilder took 1422.48ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 93.3MB in the beginning and 130.9MB in the end (delta: -37.6MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. * TraceAbstraction took 39416.48ms. Allocated memory was 237.0MB in the beginning and 1.4GB in the end (delta: 1.1GB). Free memory was 129.9MB in the beginning and 786.3MB in the end (delta: -656.5MB). Peak memory consumption was 481.3MB. Max. memory is 16.1GB. * Witness Printer took 201.71ms. Allocated memory is still 1.4GB. Free memory was 786.3MB in the beginning and 771.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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: 128]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 248 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.0s, OverallIterations: 22, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2525 SdHoareTripleChecker+Valid, 11.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2525 mSDsluCounter, 2281 SdHoareTripleChecker+Invalid, 9.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 1156 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11565 IncrementalHoareTripleChecker+Invalid, 12721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1156 mSolverCounterUnsat, 2109 mSDtfsCounter, 11565 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11684 GetRequests, 11608 SyntacticMatches, 1 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4838occurred in iteration=20, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 22 MinimizatonAttempts, 3401 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 21363 NumberOfCodeBlocks, 21363 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 25742 ConstructedInterpolants, 0 QuantifiedInterpolants, 73944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9052 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 37 InterpolantComputations, 21 PerfectInterpolantSequences, 76558/80213 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:06:46,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE