./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label41.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label41.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 c46880ee7396e67063fc71dfe693983c82e91caf4fc722eef8750e6aef0cc86c --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 18:38:00,635 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 18:38:00,690 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 18:38:00,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 18:38:00,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 18:38:00,720 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 18:38:00,722 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 18:38:00,722 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 18:38:00,723 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 18:38:00,724 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 18:38:00,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 18:38:00,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 18:38:00,725 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 18:38:00,726 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 18:38:00,727 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 18:38:00,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 18:38:00,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 18:38:00,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 18:38:00,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 18:38:00,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 18:38:00,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 18:38:00,731 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 18:38:00,731 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 18:38:00,731 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 18:38:00,732 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 18:38:00,732 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 18:38:00,732 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 18:38:00,732 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 18:38:00,733 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 18:38:00,733 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 18:38:00,733 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 18:38:00,733 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 18:38:00,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 18:38:00,734 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 18:38:00,734 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 18:38:00,734 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 18:38:00,734 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 18:38:00,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 18:38:00,735 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 18:38:00,735 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 18:38:00,736 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 18:38:00,736 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 18:38:00,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46880ee7396e67063fc71dfe693983c82e91caf4fc722eef8750e6aef0cc86c [2024-11-19 18:38:00,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 18:38:00,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 18:38:00,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 18:38:00,948 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 18:38:00,949 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 18:38:00,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label41.c [2024-11-19 18:38:02,167 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 18:38:02,483 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 18:38:02,484 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label41.c [2024-11-19 18:38:02,500 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f225f7e00/49ecb3c9856a4604b4c31d3fe9138959/FLAG074298d86 [2024-11-19 18:38:02,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f225f7e00/49ecb3c9856a4604b4c31d3fe9138959 [2024-11-19 18:38:02,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 18:38:02,524 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 18:38:02,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 18:38:02,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 18:38:02,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 18:38:02,534 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:38:02" (1/1) ... [2024-11-19 18:38:02,535 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faa39c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:02, skipping insertion in model container [2024-11-19 18:38:02,535 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:38:02" (1/1) ... [2024-11-19 18:38:02,608 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 18:38:02,801 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/Problem18_label41.c[6755,6768] [2024-11-19 18:38:03,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 18:38:03,219 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 18:38:03,243 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/Problem18_label41.c[6755,6768] [2024-11-19 18:38:03,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 18:38:03,459 INFO L204 MainTranslator]: Completed translation [2024-11-19 18:38:03,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03 WrapperNode [2024-11-19 18:38:03,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 18:38:03,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 18:38:03,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 18:38:03,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 18:38:03,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,683 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-11-19 18:38:03,683 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 18:38:03,685 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 18:38:03,685 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 18:38:03,685 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 18:38:03,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,709 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,759 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]. [2024-11-19 18:38:03,760 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,760 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,816 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,862 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 18:38:03,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 18:38:03,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 18:38:03,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 18:38:03,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (1/1) ... [2024-11-19 18:38:03,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 18:38:03,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 18:38:03,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 18:38:03,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 18:38:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 18:38:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 18:38:03,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 18:38:03,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 18:38:04,005 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 18:38:04,007 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 18:38:06,424 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-19 18:38:06,425 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 18:38:06,452 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 18:38:06,452 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 18:38:06,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:38:06 BoogieIcfgContainer [2024-11-19 18:38:06,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 18:38:06,454 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 18:38:06,454 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 18:38:06,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 18:38:06,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:38:02" (1/3) ... [2024-11-19 18:38:06,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37702cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:38:06, skipping insertion in model container [2024-11-19 18:38:06,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:38:03" (2/3) ... [2024-11-19 18:38:06,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37702cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:38:06, skipping insertion in model container [2024-11-19 18:38:06,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:38:06" (3/3) ... [2024-11-19 18:38:06,460 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label41.c [2024-11-19 18:38:06,472 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 18:38:06,472 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 18:38:06,539 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 18:38:06,544 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;@5fd44838, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 18:38:06,544 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 18:38:06,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 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) [2024-11-19 18:38:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 18:38:06,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:06,556 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:06,557 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:06,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2024-11-19 18:38:06,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:06,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475750881] [2024-11-19 18:38:06,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:06,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:06,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 18:38:06,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:06,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475750881] [2024-11-19 18:38:06,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475750881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:06,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:06,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 18:38:06,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443235546] [2024-11-19 18:38:06,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:06,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:06,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:06,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:06,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:06,891 INFO L87 Difference]: Start difference. First operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 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 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2024-11-19 18:38:09,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:09,351 INFO L93 Difference]: Finished difference Result 2205 states and 4266 transitions. [2024-11-19 18:38:09,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:09,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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 65 [2024-11-19 18:38:09,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:09,369 INFO L225 Difference]: With dead ends: 2205 [2024-11-19 18:38:09,369 INFO L226 Difference]: Without dead ends: 1384 [2024-11-19 18:38:09,373 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 [2024-11-19 18:38:09,375 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 683 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:09,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 291 Invalid, 2985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-19 18:38:09,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-19 18:38:09,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-19 18:38:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 1.7339117859725235) internal successors, (2398), 1383 states have internal predecessors, (2398), 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) [2024-11-19 18:38:09,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2398 transitions. [2024-11-19 18:38:09,461 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2398 transitions. Word has length 65 [2024-11-19 18:38:09,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:09,462 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2398 transitions. [2024-11-19 18:38:09,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 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) [2024-11-19 18:38:09,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2398 transitions. [2024-11-19 18:38:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-19 18:38:09,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:09,465 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:09,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 18:38:09,465 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:09,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:09,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1195211116, now seen corresponding path program 1 times [2024-11-19 18:38:09,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:09,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181185788] [2024-11-19 18:38:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:09,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:09,671 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 18:38:09,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:09,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181185788] [2024-11-19 18:38:09,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181185788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:09,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:09,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:09,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507165119] [2024-11-19 18:38:09,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:09,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 18:38:09,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:09,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 18:38:09,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 18:38:09,674 INFO L87 Difference]: Start difference. First operand 1384 states and 2398 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-19 18:38:12,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:12,860 INFO L93 Difference]: Finished difference Result 4842 states and 8275 transitions. [2024-11-19 18:38:12,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 18:38:12,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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 134 [2024-11-19 18:38:12,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:12,870 INFO L225 Difference]: With dead ends: 4842 [2024-11-19 18:38:12,870 INFO L226 Difference]: Without dead ends: 3460 [2024-11-19 18:38:12,873 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 [2024-11-19 18:38:12,874 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 2036 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3268 mSolverCounterSat, 1420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 4688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1420 IncrementalHoareTripleChecker+Valid, 3268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:12,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 135 Invalid, 4688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1420 Valid, 3268 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 18:38:12,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2024-11-19 18:38:12,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3454. [2024-11-19 18:38:12,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 3453 states have (on average 1.5409788589632203) internal successors, (5321), 3453 states have internal predecessors, (5321), 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) [2024-11-19 18:38:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 5321 transitions. [2024-11-19 18:38:12,922 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 5321 transitions. Word has length 134 [2024-11-19 18:38:12,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:12,924 INFO L471 AbstractCegarLoop]: Abstraction has 3454 states and 5321 transitions. [2024-11-19 18:38:12,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-19 18:38:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 5321 transitions. [2024-11-19 18:38:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-19 18:38:12,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:12,927 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 18:38:12,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 18:38:12,927 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1248920847, now seen corresponding path program 1 times [2024-11-19 18:38:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:12,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178043594] [2024-11-19 18:38:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:13,304 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 18:38:13,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:13,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178043594] [2024-11-19 18:38:13,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178043594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:13,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:13,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:13,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596873699] [2024-11-19 18:38:13,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:13,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 18:38:13,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:13,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 18:38:13,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 18:38:13,309 INFO L87 Difference]: Start difference. First operand 3454 states and 5321 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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) [2024-11-19 18:38:16,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:16,325 INFO L93 Difference]: Finished difference Result 11048 states and 17166 transitions. [2024-11-19 18:38:16,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 18:38:16,326 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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 183 [2024-11-19 18:38:16,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:16,343 INFO L225 Difference]: With dead ends: 11048 [2024-11-19 18:38:16,343 INFO L226 Difference]: Without dead ends: 7596 [2024-11-19 18:38:16,347 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 [2024-11-19 18:38:16,348 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 1875 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4380 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 5008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 4380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:16,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 649 Invalid, 5008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 4380 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 18:38:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2024-11-19 18:38:16,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 6904. [2024-11-19 18:38:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6904 states, 6903 states have (on average 1.3273938867159205) internal successors, (9163), 6903 states have internal predecessors, (9163), 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) [2024-11-19 18:38:16,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6904 states to 6904 states and 9163 transitions. [2024-11-19 18:38:16,465 INFO L78 Accepts]: Start accepts. Automaton has 6904 states and 9163 transitions. Word has length 183 [2024-11-19 18:38:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:16,466 INFO L471 AbstractCegarLoop]: Abstraction has 6904 states and 9163 transitions. [2024-11-19 18:38:16,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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) [2024-11-19 18:38:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6904 states and 9163 transitions. [2024-11-19 18:38:16,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-19 18:38:16,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:16,474 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:16,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 18:38:16,474 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:16,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:16,476 INFO L85 PathProgramCache]: Analyzing trace with hash 451813744, now seen corresponding path program 1 times [2024-11-19 18:38:16,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:16,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736936631] [2024-11-19 18:38:16,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:16,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 18:38:16,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:16,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736936631] [2024-11-19 18:38:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736936631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:16,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:16,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778748673] [2024-11-19 18:38:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:16,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 18:38:16,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 18:38:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 18:38:16,836 INFO L87 Difference]: Start difference. First operand 6904 states and 9163 transitions. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 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) [2024-11-19 18:38:18,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:18,891 INFO L93 Difference]: Finished difference Result 16621 states and 22106 transitions. [2024-11-19 18:38:18,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 18:38:18,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 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 324 [2024-11-19 18:38:18,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:18,912 INFO L225 Difference]: With dead ends: 16621 [2024-11-19 18:38:18,912 INFO L226 Difference]: Without dead ends: 9666 [2024-11-19 18:38:18,920 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 [2024-11-19 18:38:18,921 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 515 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3039 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 3727 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 3039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:18,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 639 Invalid, 3727 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 3039 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 18:38:18,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2024-11-19 18:38:19,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 9664. [2024-11-19 18:38:19,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9664 states, 9663 states have (on average 1.1779985511745834) internal successors, (11383), 9663 states have internal predecessors, (11383), 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) [2024-11-19 18:38:19,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9664 states to 9664 states and 11383 transitions. [2024-11-19 18:38:19,032 INFO L78 Accepts]: Start accepts. Automaton has 9664 states and 11383 transitions. Word has length 324 [2024-11-19 18:38:19,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:19,034 INFO L471 AbstractCegarLoop]: Abstraction has 9664 states and 11383 transitions. [2024-11-19 18:38:19,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 3 states have internal predecessors, (313), 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) [2024-11-19 18:38:19,034 INFO L276 IsEmpty]: Start isEmpty. Operand 9664 states and 11383 transitions. [2024-11-19 18:38:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2024-11-19 18:38:19,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:19,047 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:19,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 18:38:19,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:19,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:19,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1420543167, now seen corresponding path program 1 times [2024-11-19 18:38:19,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:19,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745081379] [2024-11-19 18:38:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:19,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:19,818 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-19 18:38:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745081379] [2024-11-19 18:38:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745081379] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 18:38:19,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458827034] [2024-11-19 18:38:19,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:19,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 18:38:19,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 18:38:19,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 18:38:19,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 18:38:20,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:20,035 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 18:38:20,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 18:38:20,885 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2024-11-19 18:38:20,885 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 18:38:20,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458827034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:20,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 18:38:20,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-19 18:38:20,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249164821] [2024-11-19 18:38:20,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:20,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:20,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:20,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 18:38:20,888 INFO L87 Difference]: Start difference. First operand 9664 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 2 states have internal predecessors, (520), 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) [2024-11-19 18:38:22,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:22,409 INFO L93 Difference]: Finished difference Result 22086 states and 26238 transitions. [2024-11-19 18:38:22,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:22,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 2 states have internal predecessors, (520), 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 879 [2024-11-19 18:38:22,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:22,431 INFO L225 Difference]: With dead ends: 22086 [2024-11-19 18:38:22,432 INFO L226 Difference]: Without dead ends: 12424 [2024-11-19 18:38:22,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 881 GetRequests, 878 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 18:38:22,443 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 195 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1910 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 2215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:22,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 275 Invalid, 2215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1910 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 18:38:22,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12424 states. [2024-11-19 18:38:22,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12424 to 11734. [2024-11-19 18:38:22,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11734 states, 11733 states have (on average 1.1751470212221937) internal successors, (13788), 11733 states have internal predecessors, (13788), 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) [2024-11-19 18:38:22,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11734 states to 11734 states and 13788 transitions. [2024-11-19 18:38:22,566 INFO L78 Accepts]: Start accepts. Automaton has 11734 states and 13788 transitions. Word has length 879 [2024-11-19 18:38:22,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:22,567 INFO L471 AbstractCegarLoop]: Abstraction has 11734 states and 13788 transitions. [2024-11-19 18:38:22,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 2 states have internal predecessors, (520), 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) [2024-11-19 18:38:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 11734 states and 13788 transitions. [2024-11-19 18:38:22,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 950 [2024-11-19 18:38:22,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:22,582 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:22,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 18:38:22,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 18:38:22,784 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:22,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:22,785 INFO L85 PathProgramCache]: Analyzing trace with hash -2032146719, now seen corresponding path program 1 times [2024-11-19 18:38:22,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:22,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638307180] [2024-11-19 18:38:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:22,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:23,277 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2024-11-19 18:38:23,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:23,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638307180] [2024-11-19 18:38:23,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638307180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:23,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:23,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 18:38:23,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747410885] [2024-11-19 18:38:23,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:23,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:23,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:23,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:23,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:23,281 INFO L87 Difference]: Start difference. First operand 11734 states and 13788 transitions. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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) [2024-11-19 18:38:24,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:24,855 INFO L93 Difference]: Finished difference Result 28296 states and 34141 transitions. [2024-11-19 18:38:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:24,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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 949 [2024-11-19 18:38:24,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:24,877 INFO L225 Difference]: With dead ends: 28296 [2024-11-19 18:38:24,877 INFO L226 Difference]: Without dead ends: 16564 [2024-11-19 18:38:24,886 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 [2024-11-19 18:38:24,886 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 226 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 2269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:24,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 389 Invalid, 2269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 1667 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 18:38:24,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16564 states. [2024-11-19 18:38:24,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16564 to 14494. [2024-11-19 18:38:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14494 states, 14493 states have (on average 1.155937349065066) internal successors, (16753), 14493 states have internal predecessors, (16753), 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) [2024-11-19 18:38:25,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14494 states to 14494 states and 16753 transitions. [2024-11-19 18:38:25,018 INFO L78 Accepts]: Start accepts. Automaton has 14494 states and 16753 transitions. Word has length 949 [2024-11-19 18:38:25,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:25,019 INFO L471 AbstractCegarLoop]: Abstraction has 14494 states and 16753 transitions. [2024-11-19 18:38:25,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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) [2024-11-19 18:38:25,019 INFO L276 IsEmpty]: Start isEmpty. Operand 14494 states and 16753 transitions. [2024-11-19 18:38:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 965 [2024-11-19 18:38:25,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:25,037 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:25,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 18:38:25,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:25,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash -788880812, now seen corresponding path program 1 times [2024-11-19 18:38:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:25,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200325828] [2024-11-19 18:38:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 655 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2024-11-19 18:38:25,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:25,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200325828] [2024-11-19 18:38:25,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200325828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:25,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:25,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 18:38:25,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288784731] [2024-11-19 18:38:25,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:25,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:25,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:25,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:25,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:25,517 INFO L87 Difference]: Start difference. First operand 14494 states and 16753 transitions. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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) [2024-11-19 18:38:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:26,876 INFO L93 Difference]: Finished difference Result 32436 states and 37375 transitions. [2024-11-19 18:38:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:26,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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 964 [2024-11-19 18:38:26,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:26,899 INFO L225 Difference]: With dead ends: 32436 [2024-11-19 18:38:26,899 INFO L226 Difference]: Without dead ends: 17944 [2024-11-19 18:38:26,912 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 [2024-11-19 18:38:26,913 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 249 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1791 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 1791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:26,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 77 Invalid, 2308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 1791 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 18:38:26,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17944 states. [2024-11-19 18:38:27,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17944 to 17944. [2024-11-19 18:38:27,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17944 states, 17943 states have (on average 1.1281836928049935) internal successors, (20243), 17943 states have internal predecessors, (20243), 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) [2024-11-19 18:38:27,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17944 states to 17944 states and 20243 transitions. [2024-11-19 18:38:27,143 INFO L78 Accepts]: Start accepts. Automaton has 17944 states and 20243 transitions. Word has length 964 [2024-11-19 18:38:27,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:27,144 INFO L471 AbstractCegarLoop]: Abstraction has 17944 states and 20243 transitions. [2024-11-19 18:38:27,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 2 states have internal predecessors, (583), 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) [2024-11-19 18:38:27,144 INFO L276 IsEmpty]: Start isEmpty. Operand 17944 states and 20243 transitions. [2024-11-19 18:38:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2024-11-19 18:38:27,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:27,156 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:27,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 18:38:27,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:27,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:27,157 INFO L85 PathProgramCache]: Analyzing trace with hash -2105112743, now seen corresponding path program 1 times [2024-11-19 18:38:27,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:27,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592435645] [2024-11-19 18:38:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:27,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:27,980 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2024-11-19 18:38:27,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:27,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592435645] [2024-11-19 18:38:27,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592435645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:27,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:27,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:27,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703146121] [2024-11-19 18:38:27,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:27,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:27,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:27,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:27,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:27,982 INFO L87 Difference]: Start difference. First operand 17944 states and 20243 transitions. Second operand has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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) [2024-11-19 18:38:29,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:29,573 INFO L93 Difference]: Finished difference Result 43476 states and 49395 transitions. [2024-11-19 18:38:29,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:29,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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 997 [2024-11-19 18:38:29,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:29,600 INFO L225 Difference]: With dead ends: 43476 [2024-11-19 18:38:29,600 INFO L226 Difference]: Without dead ends: 25534 [2024-11-19 18:38:29,615 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:29,616 INFO L432 NwaCegarLoop]: 1009 mSDtfsCounter, 576 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:29,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1015 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1985 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 18:38:29,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25534 states. [2024-11-19 18:38:29,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25534 to 25534. [2024-11-19 18:38:29,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25534 states, 25533 states have (on average 1.1112286061175733) internal successors, (28373), 25533 states have internal predecessors, (28373), 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) [2024-11-19 18:38:29,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25534 states to 25534 states and 28373 transitions. [2024-11-19 18:38:29,812 INFO L78 Accepts]: Start accepts. Automaton has 25534 states and 28373 transitions. Word has length 997 [2024-11-19 18:38:29,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:29,812 INFO L471 AbstractCegarLoop]: Abstraction has 25534 states and 28373 transitions. [2024-11-19 18:38:29,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.66666666666666) internal successors, (701), 3 states have internal predecessors, (701), 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) [2024-11-19 18:38:29,813 INFO L276 IsEmpty]: Start isEmpty. Operand 25534 states and 28373 transitions. [2024-11-19 18:38:29,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2024-11-19 18:38:29,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:29,819 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:29,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 18:38:29,820 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:29,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:29,820 INFO L85 PathProgramCache]: Analyzing trace with hash 418544912, now seen corresponding path program 1 times [2024-11-19 18:38:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180969674] [2024-11-19 18:38:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:29,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:29,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 360 proven. 368 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 18:38:31,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180969674] [2024-11-19 18:38:31,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180969674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 18:38:31,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978262019] [2024-11-19 18:38:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:31,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 18:38:31,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 18:38:31,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 18:38:31,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 18:38:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:31,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 1140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 18:38:31,274 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 18:38:31,355 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-19 18:38:31,355 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 18:38:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978262019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 18:38:31,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-19 18:38:31,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719579481] [2024-11-19 18:38:31,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:31,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:31,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:31,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 18:38:31,357 INFO L87 Difference]: Start difference. First operand 25534 states and 28373 transitions. Second operand has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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) [2024-11-19 18:38:32,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:32,753 INFO L93 Difference]: Finished difference Result 51066 states and 56744 transitions. [2024-11-19 18:38:32,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:32,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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 1004 [2024-11-19 18:38:32,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:32,778 INFO L225 Difference]: With dead ends: 51066 [2024-11-19 18:38:32,778 INFO L226 Difference]: Without dead ends: 25534 [2024-11-19 18:38:32,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 18:38:32,790 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 732 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:32,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 780 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 18:38:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25534 states. [2024-11-19 18:38:32,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25534 to 25534. [2024-11-19 18:38:32,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25534 states, 25533 states have (on average 1.093330200133161) internal successors, (27916), 25533 states have internal predecessors, (27916), 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) [2024-11-19 18:38:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25534 states to 25534 states and 27916 transitions. [2024-11-19 18:38:32,982 INFO L78 Accepts]: Start accepts. Automaton has 25534 states and 27916 transitions. Word has length 1004 [2024-11-19 18:38:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:32,982 INFO L471 AbstractCegarLoop]: Abstraction has 25534 states and 27916 transitions. [2024-11-19 18:38:32,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.33333333333334) internal successors, (583), 3 states have internal predecessors, (583), 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) [2024-11-19 18:38:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 25534 states and 27916 transitions. [2024-11-19 18:38:32,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1118 [2024-11-19 18:38:32,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:32,992 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:32,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 18:38:33,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-19 18:38:33,193 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:33,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:33,193 INFO L85 PathProgramCache]: Analyzing trace with hash -283373849, now seen corresponding path program 1 times [2024-11-19 18:38:33,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:33,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32351801] [2024-11-19 18:38:33,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:33,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1305 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-19 18:38:33,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:33,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32351801] [2024-11-19 18:38:33,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32351801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:33,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:33,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:33,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477783429] [2024-11-19 18:38:33,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:33,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:33,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:33,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:33,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:33,728 INFO L87 Difference]: Start difference. First operand 25534 states and 27916 transitions. Second operand has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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) [2024-11-19 18:38:35,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:35,113 INFO L93 Difference]: Finished difference Result 58656 states and 65007 transitions. [2024-11-19 18:38:35,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:35,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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 1117 [2024-11-19 18:38:35,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:35,146 INFO L225 Difference]: With dead ends: 58656 [2024-11-19 18:38:35,146 INFO L226 Difference]: Without dead ends: 33124 [2024-11-19 18:38:35,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:35,166 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 645 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 932 SdHoareTripleChecker+Invalid, 2190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:35,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 932 Invalid, 2190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 18:38:35,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33124 states. [2024-11-19 18:38:35,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33124 to 33124. [2024-11-19 18:38:35,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33124 states, 33123 states have (on average 1.094043413941974) internal successors, (36238), 33123 states have internal predecessors, (36238), 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) [2024-11-19 18:38:35,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33124 states to 33124 states and 36238 transitions. [2024-11-19 18:38:35,408 INFO L78 Accepts]: Start accepts. Automaton has 33124 states and 36238 transitions. Word has length 1117 [2024-11-19 18:38:35,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:35,409 INFO L471 AbstractCegarLoop]: Abstraction has 33124 states and 36238 transitions. [2024-11-19 18:38:35,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.66666666666666) internal successors, (668), 3 states have internal predecessors, (668), 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) [2024-11-19 18:38:35,409 INFO L276 IsEmpty]: Start isEmpty. Operand 33124 states and 36238 transitions. [2024-11-19 18:38:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1141 [2024-11-19 18:38:35,418 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:35,418 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:35,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 18:38:35,418 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:35,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:35,419 INFO L85 PathProgramCache]: Analyzing trace with hash 205873054, now seen corresponding path program 1 times [2024-11-19 18:38:35,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:35,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173421309] [2024-11-19 18:38:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 575 proven. 555 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-19 18:38:36,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:36,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173421309] [2024-11-19 18:38:36,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173421309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 18:38:36,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216660538] [2024-11-19 18:38:36,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:36,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 18:38:36,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 18:38:36,685 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 18:38:36,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 18:38:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:36,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-19 18:38:36,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 18:38:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1387 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-19 18:38:36,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 18:38:36,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216660538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:36,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 18:38:37,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-19 18:38:37,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502374603] [2024-11-19 18:38:37,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:37,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:37,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:37,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:37,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 18:38:37,002 INFO L87 Difference]: Start difference. First operand 33124 states and 36238 transitions. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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) [2024-11-19 18:38:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:38,504 INFO L93 Difference]: Finished difference Result 73146 states and 80366 transitions. [2024-11-19 18:38:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:38,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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 1140 [2024-11-19 18:38:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:38,532 INFO L225 Difference]: With dead ends: 73146 [2024-11-19 18:38:38,533 INFO L226 Difference]: Without dead ends: 35884 [2024-11-19 18:38:38,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1145 GetRequests, 1140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 18:38:38,545 INFO L432 NwaCegarLoop]: 968 mSDtfsCounter, 647 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 509 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:38,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 975 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 18:38:38,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35884 states. [2024-11-19 18:38:38,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35884 to 35194. [2024-11-19 18:38:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35194 states, 35193 states have (on average 1.0481914016992016) internal successors, (36889), 35193 states have internal predecessors, (36889), 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) [2024-11-19 18:38:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35194 states to 35194 states and 36889 transitions. [2024-11-19 18:38:38,786 INFO L78 Accepts]: Start accepts. Automaton has 35194 states and 36889 transitions. Word has length 1140 [2024-11-19 18:38:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:38,787 INFO L471 AbstractCegarLoop]: Abstraction has 35194 states and 36889 transitions. [2024-11-19 18:38:38,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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) [2024-11-19 18:38:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 35194 states and 36889 transitions. [2024-11-19 18:38:38,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1374 [2024-11-19 18:38:38,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:38,805 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:38,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 18:38:39,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 18:38:39,006 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:39,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:39,007 INFO L85 PathProgramCache]: Analyzing trace with hash -303373939, now seen corresponding path program 1 times [2024-11-19 18:38:39,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:39,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749803459] [2024-11-19 18:38:39,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:39,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:39,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2167 backedges. 1381 proven. 0 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2024-11-19 18:38:39,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:39,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749803459] [2024-11-19 18:38:39,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749803459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:39,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:39,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:39,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390661451] [2024-11-19 18:38:39,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:39,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:39,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:39,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:39,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:39,646 INFO L87 Difference]: Start difference. First operand 35194 states and 36889 transitions. Second operand has 3 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 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) [2024-11-19 18:38:41,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:41,002 INFO L93 Difference]: Finished difference Result 79356 states and 83561 transitions. [2024-11-19 18:38:41,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:41,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 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 1373 [2024-11-19 18:38:41,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:41,044 INFO L225 Difference]: With dead ends: 79356 [2024-11-19 18:38:41,044 INFO L226 Difference]: Without dead ends: 44854 [2024-11-19 18:38:41,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:41,070 INFO L432 NwaCegarLoop]: 956 mSDtfsCounter, 455 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:41,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 963 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 18:38:41,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44854 states. [2024-11-19 18:38:41,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44854 to 44854. [2024-11-19 18:38:41,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44854 states, 44853 states have (on average 1.0459501036719951) internal successors, (46914), 44853 states have internal predecessors, (46914), 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) [2024-11-19 18:38:41,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44854 states to 44854 states and 46914 transitions. [2024-11-19 18:38:41,385 INFO L78 Accepts]: Start accepts. Automaton has 44854 states and 46914 transitions. Word has length 1373 [2024-11-19 18:38:41,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:41,386 INFO L471 AbstractCegarLoop]: Abstraction has 44854 states and 46914 transitions. [2024-11-19 18:38:41,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.6666666666667) internal successors, (845), 3 states have internal predecessors, (845), 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) [2024-11-19 18:38:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 44854 states and 46914 transitions. [2024-11-19 18:38:41,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1403 [2024-11-19 18:38:41,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:41,407 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:41,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 18:38:41,407 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:41,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:41,408 INFO L85 PathProgramCache]: Analyzing trace with hash 169707259, now seen corresponding path program 1 times [2024-11-19 18:38:41,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:41,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901917130] [2024-11-19 18:38:41,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:41,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:42,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2331 backedges. 1537 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2024-11-19 18:38:42,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:42,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901917130] [2024-11-19 18:38:42,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901917130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:42,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:42,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:42,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503127728] [2024-11-19 18:38:42,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:42,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 18:38:42,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:42,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 18:38:42,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 18:38:42,488 INFO L87 Difference]: Start difference. First operand 44854 states and 46914 transitions. Second operand has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 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) [2024-11-19 18:38:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:44,570 INFO L93 Difference]: Finished difference Result 94536 states and 99052 transitions. [2024-11-19 18:38:44,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 18:38:44,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 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 1402 [2024-11-19 18:38:44,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:44,622 INFO L225 Difference]: With dead ends: 94536 [2024-11-19 18:38:44,622 INFO L226 Difference]: Without dead ends: 50374 [2024-11-19 18:38:44,653 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 [2024-11-19 18:38:44,653 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 982 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2667 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 982 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 2667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:44,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [982 Valid, 82 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 2667 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 18:38:44,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50374 states. [2024-11-19 18:38:45,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50374 to 50374. [2024-11-19 18:38:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50374 states, 50373 states have (on average 1.045083675778691) internal successors, (52644), 50373 states have internal predecessors, (52644), 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) [2024-11-19 18:38:45,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50374 states to 50374 states and 52644 transitions. [2024-11-19 18:38:45,127 INFO L78 Accepts]: Start accepts. Automaton has 50374 states and 52644 transitions. Word has length 1402 [2024-11-19 18:38:45,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:45,128 INFO L471 AbstractCegarLoop]: Abstraction has 50374 states and 52644 transitions. [2024-11-19 18:38:45,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.5) internal successors, (822), 3 states have internal predecessors, (822), 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) [2024-11-19 18:38:45,128 INFO L276 IsEmpty]: Start isEmpty. Operand 50374 states and 52644 transitions. [2024-11-19 18:38:45,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1418 [2024-11-19 18:38:45,147 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:45,148 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, 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, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:45,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 18:38:45,148 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:45,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2073538359, now seen corresponding path program 1 times [2024-11-19 18:38:45,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:45,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236239828] [2024-11-19 18:38:45,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:45,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:45,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2721 backedges. 1786 proven. 0 refuted. 0 times theorem prover too weak. 935 trivial. 0 not checked. [2024-11-19 18:38:45,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:45,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236239828] [2024-11-19 18:38:45,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236239828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:45,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:45,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:45,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85490438] [2024-11-19 18:38:45,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:45,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:45,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:45,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:45,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:45,804 INFO L87 Difference]: Start difference. First operand 50374 states and 52644 transitions. Second operand has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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) [2024-11-19 18:38:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:47,077 INFO L93 Difference]: Finished difference Result 100056 states and 104595 transitions. [2024-11-19 18:38:47,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:47,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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 1417 [2024-11-19 18:38:47,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:47,129 INFO L225 Difference]: With dead ends: 100056 [2024-11-19 18:38:47,130 INFO L226 Difference]: Without dead ends: 50374 [2024-11-19 18:38:47,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:47,161 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 553 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 553 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:47,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [553 Valid, 925 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 18:38:47,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50374 states. [2024-11-19 18:38:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50374 to 49684. [2024-11-19 18:38:47,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49684 states, 49683 states have (on average 1.039570879375239) internal successors, (51649), 49683 states have internal predecessors, (51649), 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) [2024-11-19 18:38:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49684 states to 49684 states and 51649 transitions. [2024-11-19 18:38:47,549 INFO L78 Accepts]: Start accepts. Automaton has 49684 states and 51649 transitions. Word has length 1417 [2024-11-19 18:38:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:47,550 INFO L471 AbstractCegarLoop]: Abstraction has 49684 states and 51649 transitions. [2024-11-19 18:38:47,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.66666666666666) internal successors, (761), 3 states have internal predecessors, (761), 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) [2024-11-19 18:38:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 49684 states and 51649 transitions. [2024-11-19 18:38:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1482 [2024-11-19 18:38:47,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:47,570 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:47,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 18:38:47,570 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:47,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:47,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1119556940, now seen corresponding path program 1 times [2024-11-19 18:38:47,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:47,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699305244] [2024-11-19 18:38:47,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:47,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 943 proven. 0 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-11-19 18:38:48,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:48,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699305244] [2024-11-19 18:38:48,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699305244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:48,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:48,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:48,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785500321] [2024-11-19 18:38:48,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:48,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:48,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:48,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:48,994 INFO L87 Difference]: Start difference. First operand 49684 states and 51649 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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) [2024-11-19 18:38:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:50,445 INFO L93 Difference]: Finished difference Result 99366 states and 103312 transitions. [2024-11-19 18:38:50,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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 1481 [2024-11-19 18:38:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:50,490 INFO L225 Difference]: With dead ends: 99366 [2024-11-19 18:38:50,491 INFO L226 Difference]: Without dead ends: 49684 [2024-11-19 18:38:50,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:50,518 INFO L432 NwaCegarLoop]: 752 mSDtfsCounter, 645 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:50,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 758 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 18:38:50,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49684 states. [2024-11-19 18:38:50,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49684 to 48994. [2024-11-19 18:38:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48994 states, 48993 states have (on average 1.0340456799951014) internal successors, (50661), 48993 states have internal predecessors, (50661), 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) [2024-11-19 18:38:50,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48994 states to 48994 states and 50661 transitions. [2024-11-19 18:38:50,850 INFO L78 Accepts]: Start accepts. Automaton has 48994 states and 50661 transitions. Word has length 1481 [2024-11-19 18:38:50,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:50,851 INFO L471 AbstractCegarLoop]: Abstraction has 48994 states and 50661 transitions. [2024-11-19 18:38:50,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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) [2024-11-19 18:38:50,851 INFO L276 IsEmpty]: Start isEmpty. Operand 48994 states and 50661 transitions. [2024-11-19 18:38:50,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2024-11-19 18:38:50,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 18:38:50,873 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:50,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 18:38:50,873 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 18:38:50,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 18:38:50,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2047119281, now seen corresponding path program 1 times [2024-11-19 18:38:50,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 18:38:50,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702202671] [2024-11-19 18:38:50,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 18:38:50,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 18:38:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 18:38:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3389 backedges. 1810 proven. 0 refuted. 0 times theorem prover too weak. 1579 trivial. 0 not checked. [2024-11-19 18:38:51,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 18:38:51,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702202671] [2024-11-19 18:38:51,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702202671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 18:38:51,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 18:38:51,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 18:38:51,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082052521] [2024-11-19 18:38:51,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 18:38:51,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 18:38:51,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 18:38:51,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 18:38:51,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:51,883 INFO L87 Difference]: Start difference. First operand 48994 states and 50661 transitions. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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) [2024-11-19 18:38:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 18:38:53,362 INFO L93 Difference]: Finished difference Result 97294 states and 100628 transitions. [2024-11-19 18:38:53,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 18:38:53,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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 1535 [2024-11-19 18:38:53,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 18:38:53,365 INFO L225 Difference]: With dead ends: 97294 [2024-11-19 18:38:53,365 INFO L226 Difference]: Without dead ends: 0 [2024-11-19 18:38:53,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 18:38:53,403 INFO L432 NwaCegarLoop]: 939 mSDtfsCounter, 625 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 18:38:53,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 945 Invalid, 2000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 18:38:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-19 18:38:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-19 18:38:53,404 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) [2024-11-19 18:38:53,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-19 18:38:53,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1535 [2024-11-19 18:38:53,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 18:38:53,405 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-19 18:38:53,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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) [2024-11-19 18:38:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-19 18:38:53,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-19 18:38:53,407 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-19 18:38:53,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 18:38:53,410 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 18:38:53,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-19 18:38:54,071 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-19 18:38:54,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:38:54 BoogieIcfgContainer [2024-11-19 18:38:54,086 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-19 18:38:54,087 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-19 18:38:54,087 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-19 18:38:54,087 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-19 18:38:54,087 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:38:06" (3/4) ... [2024-11-19 18:38:54,090 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-19 18:38:54,119 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-19 18:38:54,122 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-19 18:38:54,126 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-19 18:38:54,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-19 18:38:54,357 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-19 18:38:54,358 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-19 18:38:54,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-19 18:38:54,358 INFO L158 Benchmark]: Toolchain (without parser) took 51834.13ms. Allocated memory was 222.3MB in the beginning and 3.2GB in the end (delta: 3.0GB). Free memory was 192.5MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 997.9MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,359 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 146.8MB. Free memory was 98.2MB in the beginning and 98.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-19 18:38:54,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 933.72ms. Allocated memory is still 222.3MB. Free memory was 192.5MB in the beginning and 73.0MB in the end (delta: 119.5MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 222.81ms. Allocated memory is still 222.3MB. Free memory was 73.0MB in the beginning and 146.8MB in the end (delta: -73.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,360 INFO L158 Benchmark]: Boogie Preprocessor took 210.31ms. Allocated memory is still 222.3MB. Free memory was 146.8MB in the beginning and 91.8MB in the end (delta: 55.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,362 INFO L158 Benchmark]: RCFGBuilder took 2556.81ms. Allocated memory was 222.3MB in the beginning and 371.2MB in the end (delta: 148.9MB). Free memory was 90.7MB in the beginning and 216.1MB in the end (delta: -125.4MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,362 INFO L158 Benchmark]: TraceAbstraction took 47631.97ms. Allocated memory was 371.2MB in the beginning and 3.2GB in the end (delta: 2.8GB). Free memory was 215.0MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 818.0MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,363 INFO L158 Benchmark]: Witness Printer took 271.20ms. Allocated memory is still 3.2GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2024-11-19 18:38:54,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 146.8MB. Free memory was 98.2MB in the beginning and 98.0MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 933.72ms. Allocated memory is still 222.3MB. Free memory was 192.5MB in the beginning and 73.0MB in the end (delta: 119.5MB). Peak memory consumption was 119.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 222.81ms. Allocated memory is still 222.3MB. Free memory was 73.0MB in the beginning and 146.8MB in the end (delta: -73.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 210.31ms. Allocated memory is still 222.3MB. Free memory was 146.8MB in the beginning and 91.8MB in the end (delta: 55.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2556.81ms. Allocated memory was 222.3MB in the beginning and 371.2MB in the end (delta: 148.9MB). Free memory was 90.7MB in the beginning and 216.1MB in the end (delta: -125.4MB). Peak memory consumption was 99.7MB. Max. memory is 16.1GB. * TraceAbstraction took 47631.97ms. Allocated memory was 371.2MB in the beginning and 3.2GB in the end (delta: 2.8GB). Free memory was 215.0MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 818.0MB. Max. memory is 16.1GB. * Witness Printer took 271.20ms. Allocated memory is still 3.2GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 55.6MB). Peak memory consumption was 54.5MB. 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: 214]: 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, 757 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.9s, OverallIterations: 16, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 29.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11639 SdHoareTripleChecker+Valid, 26.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11639 mSDsluCounter, 9830 SdHoareTripleChecker+Invalid, 21.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 137 mSDsCounter, 7531 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35256 IncrementalHoareTripleChecker+Invalid, 42787 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7531 mSolverCounterUnsat, 9693 mSDtfsCounter, 35256 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3078 GetRequests, 3045 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50374occurred in iteration=13, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 5530 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 11.1s InterpolantComputationTime, 17987 NumberOfCodeBlocks, 17987 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 17968 ConstructedInterpolants, 0 QuantifiedInterpolants, 48224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3463 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 21210/22215 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: 4269]: Loop Invariant Derived loop invariant: ((((((((((((((5 == a15) && (a18 == 10)) || ((a24 <= 3) && (a18 <= 9))) || ((a18 == 11) && (a24 <= 3))) || (((3 <= a24) && (a15 <= 4)) && (a18 == 12))) || ((5 == a15) && (a18 == 12))) || ((a15 <= 4) && (a24 <= 1))) || ((a15 <= 4) && (a18 <= 9))) || ((5 == a15) && (a18 <= 9))) || (((3 <= a24) && (a15 <= 4)) && (a18 == 10))) || ((5 == a15) && (a18 == 11))) || (((a18 == 10) && (a24 <= 3)) && (5 <= a15))) || (((a24 <= 3) && (a18 == 12)) && (5 <= a15))) || ((a15 <= 4) && (a18 == 11))) RESULT: Ultimate proved your program to be correct! [2024-11-19 18:38:54,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE