./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label36.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem15_label36.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 f8c7f180e45ffba5eb47ee4dc238e0b48ee8dddec8c88fb0da95366e7d605cc2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 19:42:49,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 19:42:49,927 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 19:42:49,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 19:42:49,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 19:42:49,947 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 19:42:49,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 19:42:49,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 19:42:49,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 19:42:49,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 19:42:49,949 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 19:42:49,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 19:42:49,950 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 19:42:49,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 19:42:49,950 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 19:42:49,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 19:42:49,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 19:42:49,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 19:42:49,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 19:42:49,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 19:42:49,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 19:42:49,955 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 19:42:49,955 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 19:42:49,955 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 19:42:49,956 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 19:42:49,956 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 19:42:49,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 19:42:49,956 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 19:42:49,956 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 19:42:49,956 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 19:42:49,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 19:42:49,957 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 19:42:49,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:42:49,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 19:42:49,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 19:42:49,957 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 19:42:49,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 19:42:49,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 19:42:49,958 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 19:42:49,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 19:42:49,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 19:42:49,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 19:42:49,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8c7f180e45ffba5eb47ee4dc238e0b48ee8dddec8c88fb0da95366e7d605cc2 [2024-11-09 19:42:50,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 19:42:50,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 19:42:50,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 19:42:50,228 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 19:42:50,228 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 19:42:50,229 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label36.c [2024-11-09 19:42:51,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 19:42:51,775 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 19:42:51,776 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label36.c [2024-11-09 19:42:51,798 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512047147/4eafb36900794695abcd3d3a5077d1d8/FLAGa025f8925 [2024-11-09 19:42:52,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/512047147/4eafb36900794695abcd3d3a5077d1d8 [2024-11-09 19:42:52,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 19:42:52,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 19:42:52,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 19:42:52,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 19:42:52,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 19:42:52,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:52,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57208df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52, skipping insertion in model container [2024-11-09 19:42:52,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:52,123 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 19:42:52,319 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/Problem15_label36.c[7434,7447] [2024-11-09 19:42:52,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:42:52,594 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 19:42:52,617 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/Problem15_label36.c[7434,7447] [2024-11-09 19:42:52,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 19:42:52,761 INFO L204 MainTranslator]: Completed translation [2024-11-09 19:42:52,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52 WrapperNode [2024-11-09 19:42:52,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 19:42:52,762 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 19:42:52,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 19:42:52,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 19:42:52,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:52,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:52,996 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-09 19:42:52,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 19:42:52,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 19:42:52,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 19:42:52,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 19:42:53,005 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,019 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,080 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-09 19:42:53,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,129 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,154 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,162 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,177 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 19:42:53,178 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 19:42:53,178 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 19:42:53,179 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 19:42:53,180 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (1/1) ... [2024-11-09 19:42:53,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 19:42:53,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:42:53,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 19:42:53,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 19:42:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 19:42:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 19:42:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 19:42:53,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 19:42:53,368 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 19:42:53,370 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 19:42:55,479 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1665: havoc calculate_output_#t~ret7#1; [2024-11-09 19:42:55,593 INFO L? ?]: Removed 697 outVars from TransFormulas that were not future-live. [2024-11-09 19:42:55,594 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 19:42:55,617 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 19:42:55,618 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 19:42:55,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:42:55 BoogieIcfgContainer [2024-11-09 19:42:55,618 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 19:42:55,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 19:42:55,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 19:42:55,625 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 19:42:55,625 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:42:52" (1/3) ... [2024-11-09 19:42:55,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fbab42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:42:55, skipping insertion in model container [2024-11-09 19:42:55,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:42:52" (2/3) ... [2024-11-09 19:42:55,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fbab42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:42:55, skipping insertion in model container [2024-11-09 19:42:55,627 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:42:55" (3/3) ... [2024-11-09 19:42:55,628 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label36.c [2024-11-09 19:42:55,640 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 19:42:55,641 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 19:42:55,708 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 19:42:55,714 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;@312d5e00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 19:42:55,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 19:42:55,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:55,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 19:42:55,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:55,730 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] [2024-11-09 19:42:55,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:55,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:55,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1780551024, now seen corresponding path program 1 times [2024-11-09 19:42:55,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:55,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073193213] [2024-11-09 19:42:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:55,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:42:56,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:56,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073193213] [2024-11-09 19:42:56,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073193213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:56,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:56,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:42:56,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976431287] [2024-11-09 19:42:56,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:56,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:56,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:56,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:56,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:56,050 INFO L87 Difference]: Start difference. First operand has 427 states, 425 states have (on average 2.3176470588235296) internal successors, (985), 426 states have internal predecessors, (985), 0 states have call successors, (0), 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 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:58,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:42:58,178 INFO L93 Difference]: Finished difference Result 1160 states and 2808 transitions. [2024-11-09 19:42:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:42:58,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-09 19:42:58,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:42:58,198 INFO L225 Difference]: With dead ends: 1160 [2024-11-09 19:42:58,199 INFO L226 Difference]: Without dead ends: 668 [2024-11-09 19:42:58,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:58,205 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 492 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:42:58,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 388 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1440 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-09 19:42:58,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-09 19:42:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 666. [2024-11-09 19:42:58,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 665 states have (on average 2.177443609022556) internal successors, (1448), 665 states have internal predecessors, (1448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:58,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 1448 transitions. [2024-11-09 19:42:58,262 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 1448 transitions. Word has length 63 [2024-11-09 19:42:58,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:42:58,262 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 1448 transitions. [2024-11-09 19:42:58,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:42:58,263 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 1448 transitions. [2024-11-09 19:42:58,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-09 19:42:58,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:42:58,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:42:58,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 19:42:58,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:42:58,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:42:58,267 INFO L85 PathProgramCache]: Analyzing trace with hash -410439591, now seen corresponding path program 1 times [2024-11-09 19:42:58,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:42:58,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97003687] [2024-11-09 19:42:58,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:42:58,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:42:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:42:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:42:58,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:42:58,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97003687] [2024-11-09 19:42:58,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97003687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:42:58,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:42:58,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:42:58,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449004900] [2024-11-09 19:42:58,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:42:58,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:42:58,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:42:58,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:42:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:42:58,562 INFO L87 Difference]: Start difference. First operand 666 states and 1448 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:00,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:00,015 INFO L93 Difference]: Finished difference Result 1631 states and 3482 transitions. [2024-11-09 19:43:00,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:00,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2024-11-09 19:43:00,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:00,020 INFO L225 Difference]: With dead ends: 1631 [2024-11-09 19:43:00,021 INFO L226 Difference]: Without dead ends: 967 [2024-11-09 19:43:00,023 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:00,024 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 469 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:00,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 341 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:43:00,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-09 19:43:00,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2024-11-09 19:43:00,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 966 states have (on average 2.0817805383022776) internal successors, (2011), 966 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 2011 transitions. [2024-11-09 19:43:00,053 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 2011 transitions. Word has length 129 [2024-11-09 19:43:00,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:00,053 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 2011 transitions. [2024-11-09 19:43:00,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 2011 transitions. [2024-11-09 19:43:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-09 19:43:00,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:00,057 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:00,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 19:43:00,057 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:00,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:00,058 INFO L85 PathProgramCache]: Analyzing trace with hash 514952574, now seen corresponding path program 1 times [2024-11-09 19:43:00,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:00,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195047868] [2024-11-09 19:43:00,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:00,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:00,195 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:00,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:00,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195047868] [2024-11-09 19:43:00,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195047868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:00,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:00,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:00,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989617432] [2024-11-09 19:43:00,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:00,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:00,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:00,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:00,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:00,199 INFO L87 Difference]: Start difference. First operand 967 states and 2011 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 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) [2024-11-09 19:43:01,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:01,816 INFO L93 Difference]: Finished difference Result 2238 states and 4819 transitions. [2024-11-09 19:43:01,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:01,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 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 [2024-11-09 19:43:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:01,825 INFO L225 Difference]: With dead ends: 2238 [2024-11-09 19:43:01,825 INFO L226 Difference]: Without dead ends: 1573 [2024-11-09 19:43:01,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:01,827 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 488 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1303 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:01,827 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 322 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1303 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 19:43:01,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2024-11-09 19:43:01,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1271. [2024-11-09 19:43:01,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1271 states, 1270 states have (on average 2.0338582677165356) internal successors, (2583), 1270 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:01,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1271 states to 1271 states and 2583 transitions. [2024-11-09 19:43:01,848 INFO L78 Accepts]: Start accepts. Automaton has 1271 states and 2583 transitions. Word has length 134 [2024-11-09 19:43:01,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:01,848 INFO L471 AbstractCegarLoop]: Abstraction has 1271 states and 2583 transitions. [2024-11-09 19:43:01,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 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) [2024-11-09 19:43:01,849 INFO L276 IsEmpty]: Start isEmpty. Operand 1271 states and 2583 transitions. [2024-11-09 19:43:01,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-09 19:43:01,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:01,851 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, 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] [2024-11-09 19:43:01,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 19:43:01,852 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:01,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:01,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1045602599, now seen corresponding path program 1 times [2024-11-09 19:43:01,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:01,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664367973] [2024-11-09 19:43:01,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:01,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:02,023 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-09 19:43:02,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:02,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664367973] [2024-11-09 19:43:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664367973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:02,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:02,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:02,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255807280] [2024-11-09 19:43:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:02,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:02,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:02,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:02,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:02,025 INFO L87 Difference]: Start difference. First operand 1271 states and 2583 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:03,548 INFO L93 Difference]: Finished difference Result 3450 states and 7116 transitions. [2024-11-09 19:43:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:03,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 231 [2024-11-09 19:43:03,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:03,555 INFO L225 Difference]: With dead ends: 3450 [2024-11-09 19:43:03,555 INFO L226 Difference]: Without dead ends: 2181 [2024-11-09 19:43:03,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:03,560 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 490 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 1553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:03,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 344 Invalid, 1553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:03,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2181 states. [2024-11-09 19:43:03,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2181 to 2176. [2024-11-09 19:43:03,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 2175 states have (on average 1.9802298850574713) internal successors, (4307), 2175 states have internal predecessors, (4307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 4307 transitions. [2024-11-09 19:43:03,594 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 4307 transitions. Word has length 231 [2024-11-09 19:43:03,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:03,595 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 4307 transitions. [2024-11-09 19:43:03,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:03,596 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 4307 transitions. [2024-11-09 19:43:03,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-09 19:43:03,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:03,599 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, 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] [2024-11-09 19:43:03,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 19:43:03,599 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:03,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2035530817, now seen corresponding path program 1 times [2024-11-09 19:43:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:03,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741597440] [2024-11-09 19:43:03,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:03,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:03,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 19:43:04,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:04,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741597440] [2024-11-09 19:43:04,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741597440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:04,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:04,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 19:43:04,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809140401] [2024-11-09 19:43:04,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:04,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:04,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:04,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:04,125 INFO L87 Difference]: Start difference. First operand 2176 states and 4307 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:05,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:05,494 INFO L93 Difference]: Finished difference Result 4650 states and 9156 transitions. [2024-11-09 19:43:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:05,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2024-11-09 19:43:05,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:05,504 INFO L225 Difference]: With dead ends: 4650 [2024-11-09 19:43:05,504 INFO L226 Difference]: Without dead ends: 2476 [2024-11-09 19:43:05,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:05,509 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 337 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:05,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 363 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1352 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:43:05,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2024-11-09 19:43:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2024-11-09 19:43:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 2475 states have (on average 1.9575757575757575) internal successors, (4845), 2475 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:05,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 4845 transitions. [2024-11-09 19:43:05,549 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 4845 transitions. Word has length 337 [2024-11-09 19:43:05,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:05,550 INFO L471 AbstractCegarLoop]: Abstraction has 2476 states and 4845 transitions. [2024-11-09 19:43:05,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 2 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 4845 transitions. [2024-11-09 19:43:05,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-09 19:43:05,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:05,555 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:05,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 19:43:05,555 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:05,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:05,557 INFO L85 PathProgramCache]: Analyzing trace with hash 60003106, now seen corresponding path program 1 times [2024-11-09 19:43:05,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:05,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697732768] [2024-11-09 19:43:05,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:05,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:05,756 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:05,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:05,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697732768] [2024-11-09 19:43:05,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697732768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:05,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:05,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:05,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240287146] [2024-11-09 19:43:05,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:05,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:05,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:05,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:05,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:05,758 INFO L87 Difference]: Start difference. First operand 2476 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:07,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:07,326 INFO L93 Difference]: Finished difference Result 5251 states and 10505 transitions. [2024-11-09 19:43:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:07,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 352 [2024-11-09 19:43:07,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:07,339 INFO L225 Difference]: With dead ends: 5251 [2024-11-09 19:43:07,339 INFO L226 Difference]: Without dead ends: 3077 [2024-11-09 19:43:07,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:07,343 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 486 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:07,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 327 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2024-11-09 19:43:07,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2173. [2024-11-09 19:43:07,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 2172 states have (on average 1.977900552486188) internal successors, (4296), 2172 states have internal predecessors, (4296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 4296 transitions. [2024-11-09 19:43:07,378 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 4296 transitions. Word has length 352 [2024-11-09 19:43:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:07,379 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 4296 transitions. [2024-11-09 19:43:07,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 4296 transitions. [2024-11-09 19:43:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-09 19:43:07,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:07,384 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, 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] [2024-11-09 19:43:07,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 19:43:07,384 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:07,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:07,385 INFO L85 PathProgramCache]: Analyzing trace with hash 896852302, now seen corresponding path program 1 times [2024-11-09 19:43:07,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:07,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120882826] [2024-11-09 19:43:07,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:07,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2024-11-09 19:43:07,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:07,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120882826] [2024-11-09 19:43:07,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120882826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:07,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:07,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:07,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789189381] [2024-11-09 19:43:07,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:07,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:07,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:07,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:07,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:07,686 INFO L87 Difference]: Start difference. First operand 2173 states and 4296 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:09,244 INFO L93 Difference]: Finished difference Result 5254 states and 10588 transitions. [2024-11-09 19:43:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:09,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 411 [2024-11-09 19:43:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:09,256 INFO L225 Difference]: With dead ends: 5254 [2024-11-09 19:43:09,257 INFO L226 Difference]: Without dead ends: 3383 [2024-11-09 19:43:09,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:09,261 INFO L432 NwaCegarLoop]: 834 mSDtfsCounter, 499 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:09,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 873 Invalid, 1587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 1360 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3383 states. [2024-11-09 19:43:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3383 to 3083. [2024-11-09 19:43:09,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 3082 states have (on average 1.9383517196625568) internal successors, (5974), 3082 states have internal predecessors, (5974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 5974 transitions. [2024-11-09 19:43:09,300 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 5974 transitions. Word has length 411 [2024-11-09 19:43:09,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:09,301 INFO L471 AbstractCegarLoop]: Abstraction has 3083 states and 5974 transitions. [2024-11-09 19:43:09,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:09,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 5974 transitions. [2024-11-09 19:43:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2024-11-09 19:43:09,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:09,306 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, 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] [2024-11-09 19:43:09,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 19:43:09,306 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:09,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash 209207280, now seen corresponding path program 1 times [2024-11-09 19:43:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:09,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720288378] [2024-11-09 19:43:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:09,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:09,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:09,524 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 19:43:09,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:09,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720288378] [2024-11-09 19:43:09,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720288378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:09,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:09,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:09,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133339297] [2024-11-09 19:43:09,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:09,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:09,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:09,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:09,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:09,528 INFO L87 Difference]: Start difference. First operand 3083 states and 5974 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:10,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:10,921 INFO L93 Difference]: Finished difference Result 7075 states and 13950 transitions. [2024-11-09 19:43:10,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:10,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 416 [2024-11-09 19:43:10,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:10,933 INFO L225 Difference]: With dead ends: 7075 [2024-11-09 19:43:10,934 INFO L226 Difference]: Without dead ends: 4294 [2024-11-09 19:43:10,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:10,938 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 479 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 1591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:10,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [479 Valid, 841 Invalid, 1591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:43:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4294 states. [2024-11-09 19:43:10,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4294 to 3991. [2024-11-09 19:43:10,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3991 states, 3990 states have (on average 1.9210526315789473) internal successors, (7665), 3990 states have internal predecessors, (7665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 7665 transitions. [2024-11-09 19:43:10,995 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 7665 transitions. Word has length 416 [2024-11-09 19:43:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:10,996 INFO L471 AbstractCegarLoop]: Abstraction has 3991 states and 7665 transitions. [2024-11-09 19:43:10,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 7665 transitions. [2024-11-09 19:43:11,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2024-11-09 19:43:11,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:11,001 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:11,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 19:43:11,001 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:11,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:11,002 INFO L85 PathProgramCache]: Analyzing trace with hash 13617062, now seen corresponding path program 1 times [2024-11-09 19:43:11,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:11,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923325981] [2024-11-09 19:43:11,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:11,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 340 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-09 19:43:11,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:11,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923325981] [2024-11-09 19:43:11,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923325981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:11,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:11,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:11,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193027537] [2024-11-09 19:43:11,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:11,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:11,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:11,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:11,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:11,240 INFO L87 Difference]: Start difference. First operand 3991 states and 7665 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:12,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:12,586 INFO L93 Difference]: Finished difference Result 8881 states and 17320 transitions. [2024-11-09 19:43:12,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 435 [2024-11-09 19:43:12,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:12,609 INFO L225 Difference]: With dead ends: 8881 [2024-11-09 19:43:12,612 INFO L226 Difference]: Without dead ends: 5192 [2024-11-09 19:43:12,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:12,617 INFO L432 NwaCegarLoop]: 814 mSDtfsCounter, 478 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 855 SdHoareTripleChecker+Invalid, 1586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:12,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 855 Invalid, 1586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 19:43:12,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5192 states. [2024-11-09 19:43:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5192 to 4889. [2024-11-09 19:43:12,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4889 states, 4888 states have (on average 1.9122340425531914) internal successors, (9347), 4888 states have internal predecessors, (9347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4889 states to 4889 states and 9347 transitions. [2024-11-09 19:43:12,681 INFO L78 Accepts]: Start accepts. Automaton has 4889 states and 9347 transitions. Word has length 435 [2024-11-09 19:43:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:12,681 INFO L471 AbstractCegarLoop]: Abstraction has 4889 states and 9347 transitions. [2024-11-09 19:43:12,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 4889 states and 9347 transitions. [2024-11-09 19:43:12,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-09 19:43:12,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:12,688 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:12,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 19:43:12,689 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:12,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:12,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1175188196, now seen corresponding path program 1 times [2024-11-09 19:43:12,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:12,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404420260] [2024-11-09 19:43:12,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:12,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 534 proven. 39 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-09 19:43:13,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:13,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404420260] [2024-11-09 19:43:13,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404420260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:13,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470870252] [2024-11-09 19:43:13,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:13,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:13,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:13,265 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:43:13,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 19:43:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:13,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:43:13,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:43:13,603 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:13,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470870252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:13,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:13,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087884102] [2024-11-09 19:43:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:13,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:13,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:13,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:13,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:13,605 INFO L87 Difference]: Start difference. First operand 4889 states and 9347 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:14,830 INFO L93 Difference]: Finished difference Result 10975 states and 21270 transitions. [2024-11-09 19:43:14,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:14,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 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 551 [2024-11-09 19:43:14,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:14,841 INFO L225 Difference]: With dead ends: 10975 [2024-11-09 19:43:14,841 INFO L226 Difference]: Without dead ends: 6388 [2024-11-09 19:43:14,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:14,847 INFO L432 NwaCegarLoop]: 662 mSDtfsCounter, 588 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1433 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:14,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 684 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1433 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 19:43:14,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2024-11-09 19:43:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 6388. [2024-11-09 19:43:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6388 states, 6387 states have (on average 1.9340848598716143) internal successors, (12353), 6387 states have internal predecessors, (12353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6388 states to 6388 states and 12353 transitions. [2024-11-09 19:43:14,917 INFO L78 Accepts]: Start accepts. Automaton has 6388 states and 12353 transitions. Word has length 551 [2024-11-09 19:43:14,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:14,918 INFO L471 AbstractCegarLoop]: Abstraction has 6388 states and 12353 transitions. [2024-11-09 19:43:14,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:14,918 INFO L276 IsEmpty]: Start isEmpty. Operand 6388 states and 12353 transitions. [2024-11-09 19:43:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2024-11-09 19:43:14,922 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:14,922 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:14,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 19:43:15,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 19:43:15,123 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:15,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:15,124 INFO L85 PathProgramCache]: Analyzing trace with hash 306410864, now seen corresponding path program 1 times [2024-11-09 19:43:15,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:15,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48893505] [2024-11-09 19:43:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:15,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:15,488 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-09 19:43:15,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:15,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48893505] [2024-11-09 19:43:15,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48893505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:15,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:15,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:15,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201148753] [2024-11-09 19:43:15,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:15,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:15,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:15,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:15,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:15,494 INFO L87 Difference]: Start difference. First operand 6388 states and 12353 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:16,972 INFO L93 Difference]: Finished difference Result 17288 states and 33588 transitions. [2024-11-09 19:43:16,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 555 [2024-11-09 19:43:16,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:16,992 INFO L225 Difference]: With dead ends: 17288 [2024-11-09 19:43:16,992 INFO L226 Difference]: Without dead ends: 11202 [2024-11-09 19:43:16,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:16,997 INFO L432 NwaCegarLoop]: 823 mSDtfsCounter, 478 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1504 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:16,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 858 Invalid, 1674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1504 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 19:43:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11202 states. [2024-11-09 19:43:17,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11202 to 10891. [2024-11-09 19:43:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10891 states, 10890 states have (on average 1.9065197428833793) internal successors, (20762), 10890 states have internal predecessors, (20762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10891 states to 10891 states and 20762 transitions. [2024-11-09 19:43:17,110 INFO L78 Accepts]: Start accepts. Automaton has 10891 states and 20762 transitions. Word has length 555 [2024-11-09 19:43:17,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:17,111 INFO L471 AbstractCegarLoop]: Abstraction has 10891 states and 20762 transitions. [2024-11-09 19:43:17,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10891 states and 20762 transitions. [2024-11-09 19:43:17,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-09 19:43:17,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:17,118 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:17,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 19:43:17,118 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:17,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2120829946, now seen corresponding path program 1 times [2024-11-09 19:43:17,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:17,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249102860] [2024-11-09 19:43:17,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:17,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 693 proven. 39 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-09 19:43:17,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:17,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249102860] [2024-11-09 19:43:17,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249102860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:17,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874312768] [2024-11-09 19:43:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:17,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:17,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:17,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:43:17,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 19:43:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:17,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 19:43:17,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:18,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 530 trivial. 0 not checked. [2024-11-09 19:43:18,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:18,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874312768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:18,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:18,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:18,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573668523] [2024-11-09 19:43:18,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:18,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:18,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:18,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:18,010 INFO L87 Difference]: Start difference. First operand 10891 states and 20762 transitions. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:19,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:19,618 INFO L93 Difference]: Finished difference Result 21477 states and 40979 transitions. [2024-11-09 19:43:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:19,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 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 631 [2024-11-09 19:43:19,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:19,634 INFO L225 Difference]: With dead ends: 21477 [2024-11-09 19:43:19,635 INFO L226 Difference]: Without dead ends: 10888 [2024-11-09 19:43:19,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 630 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:19,641 INFO L432 NwaCegarLoop]: 802 mSDtfsCounter, 485 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:19,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 840 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 1342 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 19:43:19,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10888 states. [2024-11-09 19:43:19,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10888 to 10888. [2024-11-09 19:43:19,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10888 states, 10887 states have (on average 1.8486268026086157) internal successors, (20126), 10887 states have internal predecessors, (20126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10888 states to 10888 states and 20126 transitions. [2024-11-09 19:43:19,747 INFO L78 Accepts]: Start accepts. Automaton has 10888 states and 20126 transitions. Word has length 631 [2024-11-09 19:43:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:19,748 INFO L471 AbstractCegarLoop]: Abstraction has 10888 states and 20126 transitions. [2024-11-09 19:43:19,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand 10888 states and 20126 transitions. [2024-11-09 19:43:19,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2024-11-09 19:43:19,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:19,756 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 19:43:19,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 19:43:19,956 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,SelfDestructingSolverStorable11 [2024-11-09 19:43:19,957 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:19,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:19,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1352302069, now seen corresponding path program 1 times [2024-11-09 19:43:19,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:19,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554345406] [2024-11-09 19:43:19,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:19,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 19:43:20,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:20,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554345406] [2024-11-09 19:43:20,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554345406] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:20,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983514185] [2024-11-09 19:43:20,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:20,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:20,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:20,458 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) [2024-11-09 19:43:20,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 19:43:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:20,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 19:43:20,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 19:43:21,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:43:21,935 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 618 proven. 39 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-09 19:43:21,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983514185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 19:43:21,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 19:43:21,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 19:43:21,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705223379] [2024-11-09 19:43:21,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 19:43:21,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 19:43:21,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:21,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 19:43:21,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 19:43:21,941 INFO L87 Difference]: Start difference. First operand 10888 states and 20126 transitions. Second operand has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:28,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:28,209 INFO L93 Difference]: Finished difference Result 28940 states and 53398 transitions. [2024-11-09 19:43:28,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 19:43:28,210 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 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 631 [2024-11-09 19:43:28,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:28,230 INFO L225 Difference]: With dead ends: 28940 [2024-11-09 19:43:28,231 INFO L226 Difference]: Without dead ends: 12989 [2024-11-09 19:43:28,241 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1271 GetRequests, 1257 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-09 19:43:28,242 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 5871 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 9573 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5871 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 10303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 9573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:28,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5871 Valid, 259 Invalid, 10303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 9573 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-09 19:43:28,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12989 states. [2024-11-09 19:43:28,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12989 to 10286. [2024-11-09 19:43:28,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10286 states, 10285 states have (on average 1.805736509479825) internal successors, (18572), 10285 states have internal predecessors, (18572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10286 states to 10286 states and 18572 transitions. [2024-11-09 19:43:28,359 INFO L78 Accepts]: Start accepts. Automaton has 10286 states and 18572 transitions. Word has length 631 [2024-11-09 19:43:28,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:28,360 INFO L471 AbstractCegarLoop]: Abstraction has 10286 states and 18572 transitions. [2024-11-09 19:43:28,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 87.22222222222223) internal successors, (785), 8 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 10286 states and 18572 transitions. [2024-11-09 19:43:28,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2024-11-09 19:43:28,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:28,367 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:28,380 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 19:43:28,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:28,568 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:28,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash 848982790, now seen corresponding path program 1 times [2024-11-09 19:43:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066904725] [2024-11-09 19:43:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:28,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-09 19:43:28,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:28,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066904725] [2024-11-09 19:43:28,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066904725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:28,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:28,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:28,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850001959] [2024-11-09 19:43:28,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:28,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:28,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:28,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:28,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:28,827 INFO L87 Difference]: Start difference. First operand 10286 states and 18572 transitions. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:29,798 INFO L93 Difference]: Finished difference Result 23569 states and 42624 transitions. [2024-11-09 19:43:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:29,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 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 667 [2024-11-09 19:43:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:29,814 INFO L225 Difference]: With dead ends: 23569 [2024-11-09 19:43:29,814 INFO L226 Difference]: Without dead ends: 13285 [2024-11-09 19:43:29,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:29,823 INFO L432 NwaCegarLoop]: 732 mSDtfsCounter, 485 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 1317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:29,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 773 Invalid, 1317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:43:29,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13285 states. [2024-11-09 19:43:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13285 to 12685. [2024-11-09 19:43:29,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12685 states, 12684 states have (on average 1.8012456638284453) internal successors, (22847), 12684 states have internal predecessors, (22847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12685 states to 12685 states and 22847 transitions. [2024-11-09 19:43:29,943 INFO L78 Accepts]: Start accepts. Automaton has 12685 states and 22847 transitions. Word has length 667 [2024-11-09 19:43:29,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:29,943 INFO L471 AbstractCegarLoop]: Abstraction has 12685 states and 22847 transitions. [2024-11-09 19:43:29,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:29,944 INFO L276 IsEmpty]: Start isEmpty. Operand 12685 states and 22847 transitions. [2024-11-09 19:43:29,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2024-11-09 19:43:29,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:29,951 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:29,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 19:43:29,952 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:29,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1208880556, now seen corresponding path program 1 times [2024-11-09 19:43:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537051147] [2024-11-09 19:43:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:29,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:30,325 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 533 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-09 19:43:30,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:30,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537051147] [2024-11-09 19:43:30,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537051147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:30,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:30,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:30,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019069478] [2024-11-09 19:43:30,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:30,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:30,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:30,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:30,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:30,327 INFO L87 Difference]: Start difference. First operand 12685 states and 22847 transitions. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:31,308 INFO L93 Difference]: Finished difference Result 28380 states and 51184 transitions. [2024-11-09 19:43:31,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:31,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 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 691 [2024-11-09 19:43:31,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:31,328 INFO L225 Difference]: With dead ends: 28380 [2024-11-09 19:43:31,328 INFO L226 Difference]: Without dead ends: 15997 [2024-11-09 19:43:31,338 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:31,339 INFO L432 NwaCegarLoop]: 715 mSDtfsCounter, 320 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:31,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 750 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 19:43:31,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15997 states. [2024-11-09 19:43:31,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15997 to 15694. [2024-11-09 19:43:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15694 states, 15693 states have (on average 1.8018224686165807) internal successors, (28276), 15693 states have internal predecessors, (28276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:31,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15694 states to 15694 states and 28276 transitions. [2024-11-09 19:43:31,547 INFO L78 Accepts]: Start accepts. Automaton has 15694 states and 28276 transitions. Word has length 691 [2024-11-09 19:43:31,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:31,548 INFO L471 AbstractCegarLoop]: Abstraction has 15694 states and 28276 transitions. [2024-11-09 19:43:31,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:31,548 INFO L276 IsEmpty]: Start isEmpty. Operand 15694 states and 28276 transitions. [2024-11-09 19:43:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2024-11-09 19:43:31,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:31,561 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:31,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 19:43:31,562 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:31,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 982466314, now seen corresponding path program 1 times [2024-11-09 19:43:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:31,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358673213] [2024-11-09 19:43:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:31,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:31,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1337 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-09 19:43:31,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:31,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358673213] [2024-11-09 19:43:31,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358673213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:31,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:31,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:31,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440549273] [2024-11-09 19:43:31,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:31,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:31,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:31,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:31,906 INFO L87 Difference]: Start difference. First operand 15694 states and 28276 transitions. Second operand has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:33,083 INFO L93 Difference]: Finished difference Result 34083 states and 61453 transitions. [2024-11-09 19:43:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 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 795 [2024-11-09 19:43:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:33,108 INFO L225 Difference]: With dead ends: 34083 [2024-11-09 19:43:33,108 INFO L226 Difference]: Without dead ends: 18391 [2024-11-09 19:43:33,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:33,119 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 415 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:33,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 176 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 19:43:33,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18391 states. [2024-11-09 19:43:33,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18391 to 17191. [2024-11-09 19:43:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17191 states, 17190 states have (on average 1.7995927865037813) internal successors, (30935), 17190 states have internal predecessors, (30935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17191 states to 17191 states and 30935 transitions. [2024-11-09 19:43:33,326 INFO L78 Accepts]: Start accepts. Automaton has 17191 states and 30935 transitions. Word has length 795 [2024-11-09 19:43:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:33,327 INFO L471 AbstractCegarLoop]: Abstraction has 17191 states and 30935 transitions. [2024-11-09 19:43:33,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.33333333333334) internal successors, (496), 3 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 17191 states and 30935 transitions. [2024-11-09 19:43:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2024-11-09 19:43:33,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:33,340 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:33,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 19:43:33,340 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:33,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:33,341 INFO L85 PathProgramCache]: Analyzing trace with hash 558243673, now seen corresponding path program 1 times [2024-11-09 19:43:33,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:33,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478643326] [2024-11-09 19:43:33,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:33,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 598 proven. 0 refuted. 0 times theorem prover too weak. 526 trivial. 0 not checked. [2024-11-09 19:43:33,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:33,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478643326] [2024-11-09 19:43:33,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478643326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:33,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:33,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:33,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893270074] [2024-11-09 19:43:33,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:33,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:33,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:33,666 INFO L87 Difference]: Start difference. First operand 17191 states and 30935 transitions. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:34,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:34,748 INFO L93 Difference]: Finished difference Result 37676 states and 67890 transitions. [2024-11-09 19:43:34,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:34,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 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 852 [2024-11-09 19:43:34,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:34,770 INFO L225 Difference]: With dead ends: 37676 [2024-11-09 19:43:34,770 INFO L226 Difference]: Without dead ends: 20787 [2024-11-09 19:43:34,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:34,782 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 548 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:34,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 741 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:43:34,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20787 states. [2024-11-09 19:43:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20787 to 17783. [2024-11-09 19:43:34,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17783 states, 17782 states have (on average 1.798391631987403) internal successors, (31979), 17782 states have internal predecessors, (31979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17783 states to 17783 states and 31979 transitions. [2024-11-09 19:43:34,952 INFO L78 Accepts]: Start accepts. Automaton has 17783 states and 31979 transitions. Word has length 852 [2024-11-09 19:43:34,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:34,952 INFO L471 AbstractCegarLoop]: Abstraction has 17783 states and 31979 transitions. [2024-11-09 19:43:34,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 17783 states and 31979 transitions. [2024-11-09 19:43:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2024-11-09 19:43:34,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:34,963 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:34,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 19:43:34,963 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:34,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:34,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1521591518, now seen corresponding path program 1 times [2024-11-09 19:43:34,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:34,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666139533] [2024-11-09 19:43:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 643 proven. 270 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-09 19:43:35,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666139533] [2024-11-09 19:43:35,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666139533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:35,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327500718] [2024-11-09 19:43:35,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:35,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:35,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:35,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:43:35,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 19:43:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:36,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:43:36,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:36,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1140 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2024-11-09 19:43:36,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:36,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327500718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:36,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:36,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:36,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200740405] [2024-11-09 19:43:36,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:36,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:36,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:36,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:36,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:36,328 INFO L87 Difference]: Start difference. First operand 17783 states and 31979 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:37,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:37,438 INFO L93 Difference]: Finished difference Result 39778 states and 71522 transitions. [2024-11-09 19:43:37,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:37,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 873 [2024-11-09 19:43:37,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:37,463 INFO L225 Difference]: With dead ends: 39778 [2024-11-09 19:43:37,463 INFO L226 Difference]: Without dead ends: 22297 [2024-11-09 19:43:37,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 872 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:37,476 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 500 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:37,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 733 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:43:37,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22297 states. [2024-11-09 19:43:37,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22297 to 20187. [2024-11-09 19:43:37,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20187 states, 20186 states have (on average 1.7977311007629049) internal successors, (36289), 20186 states have internal predecessors, (36289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:37,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20187 states to 20187 states and 36289 transitions. [2024-11-09 19:43:37,675 INFO L78 Accepts]: Start accepts. Automaton has 20187 states and 36289 transitions. Word has length 873 [2024-11-09 19:43:37,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:37,676 INFO L471 AbstractCegarLoop]: Abstraction has 20187 states and 36289 transitions. [2024-11-09 19:43:37,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:37,676 INFO L276 IsEmpty]: Start isEmpty. Operand 20187 states and 36289 transitions. [2024-11-09 19:43:37,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2024-11-09 19:43:37,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:37,688 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:37,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 19:43:37,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 19:43:37,889 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:37,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:37,890 INFO L85 PathProgramCache]: Analyzing trace with hash -41137701, now seen corresponding path program 1 times [2024-11-09 19:43:37,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:37,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453651814] [2024-11-09 19:43:37,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:37,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 1516 backedges. 868 proven. 0 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2024-11-09 19:43:38,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:38,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453651814] [2024-11-09 19:43:38,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453651814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:38,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 19:43:38,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 19:43:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274932228] [2024-11-09 19:43:38,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:38,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:38,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:38,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:38,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:38,685 INFO L87 Difference]: Start difference. First operand 20187 states and 36289 transitions. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:39,863 INFO L93 Difference]: Finished difference Result 43987 states and 79053 transitions. [2024-11-09 19:43:39,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:39,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 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 907 [2024-11-09 19:43:39,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:39,890 INFO L225 Difference]: With dead ends: 43987 [2024-11-09 19:43:39,891 INFO L226 Difference]: Without dead ends: 23802 [2024-11-09 19:43:39,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 19:43:39,902 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 374 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:39,902 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 729 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:43:39,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23802 states. [2024-11-09 19:43:40,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23802 to 19884. [2024-11-09 19:43:40,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19884 states, 19883 states have (on average 1.7973645828094351) internal successors, (35737), 19883 states have internal predecessors, (35737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:40,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19884 states to 19884 states and 35737 transitions. [2024-11-09 19:43:40,101 INFO L78 Accepts]: Start accepts. Automaton has 19884 states and 35737 transitions. Word has length 907 [2024-11-09 19:43:40,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:40,102 INFO L471 AbstractCegarLoop]: Abstraction has 19884 states and 35737 transitions. [2024-11-09 19:43:40,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:40,102 INFO L276 IsEmpty]: Start isEmpty. Operand 19884 states and 35737 transitions. [2024-11-09 19:43:40,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2024-11-09 19:43:40,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:40,113 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:40,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 19:43:40,113 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:40,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:40,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1960168199, now seen corresponding path program 1 times [2024-11-09 19:43:40,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:40,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875020286] [2024-11-09 19:43:40,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:40,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:41,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 717 proven. 270 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-09 19:43:41,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:41,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875020286] [2024-11-09 19:43:41,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875020286] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:41,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42233160] [2024-11-09 19:43:41,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:41,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:41,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:41,110 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:43:41,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 19:43:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:41,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 1045 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 19:43:41,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:41,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1214 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2024-11-09 19:43:41,548 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 19:43:41,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42233160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 19:43:41,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 19:43:41,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 19:43:41,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827729453] [2024-11-09 19:43:41,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:41,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 19:43:41,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:41,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 19:43:41,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:41,549 INFO L87 Difference]: Start difference. First operand 19884 states and 35737 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:42,598 INFO L93 Difference]: Finished difference Result 32830 states and 58919 transitions. [2024-11-09 19:43:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 19:43:42,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 910 [2024-11-09 19:43:42,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:42,612 INFO L225 Difference]: With dead ends: 32830 [2024-11-09 19:43:42,612 INFO L226 Difference]: Without dead ends: 13248 [2024-11-09 19:43:42,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 909 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 19:43:42,622 INFO L432 NwaCegarLoop]: 617 mSDtfsCounter, 495 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 1238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:42,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 633 Invalid, 1238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:43:42,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13248 states. [2024-11-09 19:43:42,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13248 to 11138. [2024-11-09 19:43:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11138 states, 11137 states have (on average 1.789620184969022) internal successors, (19931), 11137 states have internal predecessors, (19931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:42,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11138 states to 11138 states and 19931 transitions. [2024-11-09 19:43:42,718 INFO L78 Accepts]: Start accepts. Automaton has 11138 states and 19931 transitions. Word has length 910 [2024-11-09 19:43:42,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:42,718 INFO L471 AbstractCegarLoop]: Abstraction has 11138 states and 19931 transitions. [2024-11-09 19:43:42,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 11138 states and 19931 transitions. [2024-11-09 19:43:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2024-11-09 19:43:42,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 19:43:42,730 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:42,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 19:43:42,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:42,931 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 19:43:42,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 19:43:42,932 INFO L85 PathProgramCache]: Analyzing trace with hash 234097340, now seen corresponding path program 1 times [2024-11-09 19:43:42,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 19:43:42,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997282547] [2024-11-09 19:43:42,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:42,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 19:43:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1292 proven. 90 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2024-11-09 19:43:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 19:43:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997282547] [2024-11-09 19:43:44,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997282547] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [319518362] [2024-11-09 19:43:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 19:43:44,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:44,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 19:43:44,341 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 19:43:44,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 19:43:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 19:43:44,623 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 19:43:44,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 19:43:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 1198 proven. 403 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2024-11-09 19:43:45,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 19:43:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1790 backedges. 942 proven. 0 refuted. 0 times theorem prover too weak. 848 trivial. 0 not checked. [2024-11-09 19:43:45,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [319518362] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 19:43:45,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 19:43:45,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 6] total 10 [2024-11-09 19:43:45,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501317107] [2024-11-09 19:43:45,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 19:43:45,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 19:43:45,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 19:43:45,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 19:43:45,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:43:45,326 INFO L87 Difference]: Start difference. First operand 11138 states and 19931 transitions. Second operand has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:46,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 19:43:46,356 INFO L93 Difference]: Finished difference Result 23475 states and 42023 transitions. [2024-11-09 19:43:46,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 19:43:46,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 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 1032 [2024-11-09 19:43:46,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 19:43:46,358 INFO L225 Difference]: With dead ends: 23475 [2024-11-09 19:43:46,358 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 19:43:46,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2069 GetRequests, 2061 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-09 19:43:46,365 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 855 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 19:43:46,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 39 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 19:43:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 19:43:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 19:43:46,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:46,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 19:43:46,366 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1032 [2024-11-09 19:43:46,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 19:43:46,366 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 19:43:46,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 19:43:46,367 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 19:43:46,367 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 19:43:46,369 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 19:43:46,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 19:43:46,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 19:43:46,573 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 19:43:46,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 19:43:48,143 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 19:43:48,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:43:48 BoogieIcfgContainer [2024-11-09 19:43:48,161 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 19:43:48,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 19:43:48,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 19:43:48,162 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 19:43:48,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 07:42:55" (3/4) ... [2024-11-09 19:43:48,165 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-09 19:43:48,195 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 19:43:48,198 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 19:43:48,201 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 19:43:48,204 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 19:43:48,420 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-09 19:43:48,420 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-09 19:43:48,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 19:43:48,421 INFO L158 Benchmark]: Toolchain (without parser) took 56363.63ms. Allocated memory was 180.4MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 144.2MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 293.7MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,421 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 91.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 19:43:48,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 702.86ms. Allocated memory is still 180.4MB. Free memory was 144.2MB in the beginning and 63.0MB in the end (delta: 81.2MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 234.09ms. Allocated memory is still 180.4MB. Free memory was 63.0MB in the beginning and 113.8MB in the end (delta: -50.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,422 INFO L158 Benchmark]: Boogie Preprocessor took 180.92ms. Allocated memory is still 180.4MB. Free memory was 113.8MB in the beginning and 57.5MB in the end (delta: 56.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,422 INFO L158 Benchmark]: IcfgBuilder took 2439.88ms. Allocated memory was 180.4MB in the beginning and 281.0MB in the end (delta: 100.7MB). Free memory was 57.5MB in the beginning and 145.3MB in the end (delta: -87.8MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,422 INFO L158 Benchmark]: TraceAbstraction took 52541.88ms. Allocated memory was 281.0MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 144.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 930.6MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,422 INFO L158 Benchmark]: Witness Printer took 258.84ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-11-09 19:43:48,426 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 91.8MB in the beginning and 91.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 702.86ms. Allocated memory is still 180.4MB. Free memory was 144.2MB in the beginning and 63.0MB in the end (delta: 81.2MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 234.09ms. Allocated memory is still 180.4MB. Free memory was 63.0MB in the beginning and 113.8MB in the end (delta: -50.8MB). Peak memory consumption was 30.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 180.92ms. Allocated memory is still 180.4MB. Free memory was 113.8MB in the beginning and 57.5MB in the end (delta: 56.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2439.88ms. Allocated memory was 180.4MB in the beginning and 281.0MB in the end (delta: 100.7MB). Free memory was 57.5MB in the beginning and 145.3MB in the end (delta: -87.8MB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. * TraceAbstraction took 52541.88ms. Allocated memory was 281.0MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 144.2MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 930.6MB. Max. memory is 16.1GB. * Witness Printer took 258.84ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.3GB in the end (delta: 41.9MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 200]: 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, 427 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.9s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15632 SdHoareTripleChecker+Valid, 31.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15632 mSDsluCounter, 11869 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 896 mSDsCounter, 3684 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36353 IncrementalHoareTripleChecker+Invalid, 40037 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3684 mSolverCounterUnsat, 10973 mSDtfsCounter, 36353 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6357 GetRequests, 6304 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20187occurred in iteration=18, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 21 MinimizatonAttempts, 18378 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 16231 NumberOfCodeBlocks, 16231 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 17865 ConstructedInterpolants, 0 QuantifiedInterpolants, 58094 SizeOfPredicates, 5 NumberOfNonLiveVariables, 5486 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 22806/24034 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: 1776]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-09 19:43:48,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE