./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem16_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem16_label50.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 07856504dc5c463e221805a89ee1e4c0e868c2c3c4725cae95a52d7200c3e290 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 04:15:11,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 04:15:11,912 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 04:15:11,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 04:15:11,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 04:15:11,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 04:15:11,955 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 04:15:11,955 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 04:15:11,956 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 04:15:11,957 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 04:15:11,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 04:15:11,959 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 04:15:11,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 04:15:11,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 04:15:11,960 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 04:15:11,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 04:15:11,961 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 04:15:11,961 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 04:15:11,962 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 04:15:11,962 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 04:15:11,962 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 04:15:11,963 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 04:15:11,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 04:15:11,964 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 04:15:11,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 04:15:11,964 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 04:15:11,964 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 04:15:11,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 04:15:11,965 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 04:15:11,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 04:15:11,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 04:15:11,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 04:15:11,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:15:11,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 04:15:11,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 04:15:11,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 04:15:11,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 04:15:11,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 04:15:11,970 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 04:15:11,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 04:15:11,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 04:15:11,971 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 04:15:11,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07856504dc5c463e221805a89ee1e4c0e868c2c3c4725cae95a52d7200c3e290 [2024-11-16 04:15:12,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 04:15:12,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 04:15:12,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 04:15:12,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 04:15:12,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 04:15:12,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem16_label50.c [2024-11-16 04:15:13,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 04:15:14,029 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 04:15:14,029 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label50.c [2024-11-16 04:15:14,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cba26ea7/66c79417a48043a781ff7dbdc3317c0b/FLAGf2d117119 [2024-11-16 04:15:14,067 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cba26ea7/66c79417a48043a781ff7dbdc3317c0b [2024-11-16 04:15:14,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 04:15:14,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 04:15:14,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 04:15:14,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 04:15:14,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 04:15:14,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:14,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@347e91fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14, skipping insertion in model container [2024-11-16 04:15:14,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:14,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 04:15:14,392 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/Problem16_label50.c[4800,4813] [2024-11-16 04:15:14,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:15:14,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 04:15:14,829 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/Problem16_label50.c[4800,4813] [2024-11-16 04:15:14,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 04:15:14,994 INFO L204 MainTranslator]: Completed translation [2024-11-16 04:15:14,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14 WrapperNode [2024-11-16 04:15:14,995 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 04:15:14,996 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 04:15:14,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 04:15:14,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 04:15:15,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,152 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-16 04:15:15,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 04:15:15,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 04:15:15,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 04:15:15,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 04:15:15,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,187 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,250 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 04:15:15,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,301 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,313 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,323 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,348 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 04:15:15,350 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 04:15:15,350 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 04:15:15,350 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 04:15:15,351 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (1/1) ... [2024-11-16 04:15:15,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 04:15:15,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 04:15:15,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 04:15:15,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 04:15:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 04:15:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 04:15:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 04:15:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 04:15:15,598 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 04:15:15,600 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 04:15:17,388 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc calculate_output_#t~ret7#1; [2024-11-16 04:15:17,501 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-16 04:15:17,501 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 04:15:17,532 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 04:15:17,535 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 04:15:17,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:15:17 BoogieIcfgContainer [2024-11-16 04:15:17,536 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 04:15:17,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 04:15:17,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 04:15:17,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 04:15:17,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 04:15:14" (1/3) ... [2024-11-16 04:15:17,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348994f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:15:17, skipping insertion in model container [2024-11-16 04:15:17,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 04:15:14" (2/3) ... [2024-11-16 04:15:17,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@348994f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 04:15:17, skipping insertion in model container [2024-11-16 04:15:17,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:15:17" (3/3) ... [2024-11-16 04:15:17,549 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label50.c [2024-11-16 04:15:17,566 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 04:15:17,566 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 04:15:17,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 04:15:17,657 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;@6ac5ec55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 04:15:17,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 04:15:17,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:17,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-16 04:15:17,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:17,673 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:17,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:17,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:17,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1217500125, now seen corresponding path program 1 times [2024-11-16 04:15:17,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:17,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360556468] [2024-11-16 04:15:17,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:17,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:17,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:15:18,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:18,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360556468] [2024-11-16 04:15:18,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360556468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:18,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:18,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:15:18,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789642139] [2024-11-16 04:15:18,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:18,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:18,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:18,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:18,095 INFO L87 Difference]: Start difference. First operand has 399 states, 397 states have (on average 1.8287153652392947) internal successors, (726), 398 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:19,705 INFO L93 Difference]: Finished difference Result 1128 states and 2109 transitions. [2024-11-16 04:15:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:19,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-16 04:15:19,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:19,723 INFO L225 Difference]: With dead ends: 1128 [2024-11-16 04:15:19,723 INFO L226 Difference]: Without dead ends: 665 [2024-11-16 04:15:19,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:19,731 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 342 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:19,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 258 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-16 04:15:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-16 04:15:19,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2024-11-16 04:15:19,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 664 states have (on average 1.516566265060241) internal successors, (1007), 664 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 1007 transitions. [2024-11-16 04:15:19,795 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 1007 transitions. Word has length 47 [2024-11-16 04:15:19,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:19,795 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 1007 transitions. [2024-11-16 04:15:19,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:19,796 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 1007 transitions. [2024-11-16 04:15:19,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-16 04:15:19,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:19,799 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:19,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 04:15:19,800 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:19,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1010203124, now seen corresponding path program 1 times [2024-11-16 04:15:19,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:19,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132980388] [2024-11-16 04:15:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:19,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:20,119 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 04:15:20,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:20,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132980388] [2024-11-16 04:15:20,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132980388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:20,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:20,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:15:20,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636729727] [2024-11-16 04:15:20,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:20,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 04:15:20,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 04:15:20,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 04:15:20,126 INFO L87 Difference]: Start difference. First operand 665 states and 1007 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:22,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:22,004 INFO L93 Difference]: Finished difference Result 2318 states and 3423 transitions. [2024-11-16 04:15:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 04:15:22,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2024-11-16 04:15:22,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:22,011 INFO L225 Difference]: With dead ends: 2318 [2024-11-16 04:15:22,011 INFO L226 Difference]: Without dead ends: 1655 [2024-11-16 04:15:22,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 04:15:22,015 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 1008 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1496 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 1496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:22,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1008 Valid, 50 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 1496 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-16 04:15:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-16 04:15:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1655. [2024-11-16 04:15:22,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1655 states, 1654 states have (on average 1.3996372430471584) internal successors, (2315), 1654 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:22,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1655 states to 1655 states and 2315 transitions. [2024-11-16 04:15:22,075 INFO L78 Accepts]: Start accepts. Automaton has 1655 states and 2315 transitions. Word has length 116 [2024-11-16 04:15:22,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:22,075 INFO L471 AbstractCegarLoop]: Abstraction has 1655 states and 2315 transitions. [2024-11-16 04:15:22,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1655 states and 2315 transitions. [2024-11-16 04:15:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-16 04:15:22,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:22,094 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:22,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 04:15:22,095 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:22,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:22,100 INFO L85 PathProgramCache]: Analyzing trace with hash -2031480360, now seen corresponding path program 1 times [2024-11-16 04:15:22,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:22,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117036382] [2024-11-16 04:15:22,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:22,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 04:15:22,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:22,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117036382] [2024-11-16 04:15:22,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117036382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:22,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:22,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:15:22,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920978921] [2024-11-16 04:15:22,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:22,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:22,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:22,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:22,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:22,422 INFO L87 Difference]: Start difference. First operand 1655 states and 2315 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:23,826 INFO L93 Difference]: Finished difference Result 3638 states and 5252 transitions. [2024-11-16 04:15:23,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:23,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 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 277 [2024-11-16 04:15:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:23,837 INFO L225 Difference]: With dead ends: 3638 [2024-11-16 04:15:23,837 INFO L226 Difference]: Without dead ends: 2315 [2024-11-16 04:15:23,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:23,843 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 279 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:23,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 80 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:15:23,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2315 states. [2024-11-16 04:15:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2315 to 2315. [2024-11-16 04:15:23,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2315 states, 2314 states have (on average 1.3478824546240276) internal successors, (3119), 2314 states have internal predecessors, (3119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2315 states to 2315 states and 3119 transitions. [2024-11-16 04:15:23,897 INFO L78 Accepts]: Start accepts. Automaton has 2315 states and 3119 transitions. Word has length 277 [2024-11-16 04:15:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:23,898 INFO L471 AbstractCegarLoop]: Abstraction has 2315 states and 3119 transitions. [2024-11-16 04:15:23,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 2 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2315 states and 3119 transitions. [2024-11-16 04:15:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-16 04:15:23,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:23,904 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:23,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 04:15:23,904 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:23,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:23,905 INFO L85 PathProgramCache]: Analyzing trace with hash 18411389, now seen corresponding path program 1 times [2024-11-16 04:15:23,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:23,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862947079] [2024-11-16 04:15:23,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:23,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:24,196 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-16 04:15:24,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:24,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862947079] [2024-11-16 04:15:24,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862947079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:24,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:24,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 04:15:24,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576727044] [2024-11-16 04:15:24,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:24,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:24,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:24,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:24,203 INFO L87 Difference]: Start difference. First operand 2315 states and 3119 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:25,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:25,497 INFO L93 Difference]: Finished difference Result 5618 states and 7713 transitions. [2024-11-16 04:15:25,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:25,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 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 313 [2024-11-16 04:15:25,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:25,512 INFO L225 Difference]: With dead ends: 5618 [2024-11-16 04:15:25,512 INFO L226 Difference]: Without dead ends: 3635 [2024-11-16 04:15:25,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:25,518 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 360 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:25,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 158 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-16 04:15:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3635 states. [2024-11-16 04:15:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3635 to 3305. [2024-11-16 04:15:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3304 states have (on average 1.234866828087167) internal successors, (4080), 3304 states have internal predecessors, (4080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:25,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4080 transitions. [2024-11-16 04:15:25,587 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4080 transitions. Word has length 313 [2024-11-16 04:15:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:25,588 INFO L471 AbstractCegarLoop]: Abstraction has 3305 states and 4080 transitions. [2024-11-16 04:15:25,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4080 transitions. [2024-11-16 04:15:25,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2024-11-16 04:15:25,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:25,600 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2024-11-16 04:15:25,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 04:15:25,601 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:25,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:25,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1251420508, now seen corresponding path program 1 times [2024-11-16 04:15:25,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:25,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952578490] [2024-11-16 04:15:25,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:25,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:25,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1166 backedges. 726 proven. 0 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-16 04:15:25,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:25,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952578490] [2024-11-16 04:15:25,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952578490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:25,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:25,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:15:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506621417] [2024-11-16 04:15:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:25,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:25,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:25,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:25,974 INFO L87 Difference]: Start difference. First operand 3305 states and 4080 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:27,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:27,351 INFO L93 Difference]: Finished difference Result 7598 states and 9442 transitions. [2024-11-16 04:15:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:27,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 568 [2024-11-16 04:15:27,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:27,362 INFO L225 Difference]: With dead ends: 7598 [2024-11-16 04:15:27,362 INFO L226 Difference]: Without dead ends: 3965 [2024-11-16 04:15:27,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:27,367 INFO L432 NwaCegarLoop]: 537 mSDtfsCounter, 286 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 297 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:27,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 545 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [297 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-16 04:15:27,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3965 states. [2024-11-16 04:15:27,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3965 to 3965. [2024-11-16 04:15:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3964 states have (on average 1.072653884964682) internal successors, (4252), 3964 states have internal predecessors, (4252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:27,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 4252 transitions. [2024-11-16 04:15:27,423 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 4252 transitions. Word has length 568 [2024-11-16 04:15:27,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:27,424 INFO L471 AbstractCegarLoop]: Abstraction has 3965 states and 4252 transitions. [2024-11-16 04:15:27,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:27,424 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 4252 transitions. [2024-11-16 04:15:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2024-11-16 04:15:27,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:27,475 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:27,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 04:15:27,475 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:27,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:27,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1460139890, now seen corresponding path program 1 times [2024-11-16 04:15:27,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:27,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606658953] [2024-11-16 04:15:27,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:27,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:27,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:28,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1443 backedges. 1123 proven. 0 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-16 04:15:28,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:28,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606658953] [2024-11-16 04:15:28,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606658953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:28,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:15:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66407868] [2024-11-16 04:15:28,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:28,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:28,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:28,282 INFO L87 Difference]: Start difference. First operand 3965 states and 4252 transitions. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:29,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:29,190 INFO L93 Difference]: Finished difference Result 8918 states and 9613 transitions. [2024-11-16 04:15:29,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 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 840 [2024-11-16 04:15:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:29,208 INFO L225 Difference]: With dead ends: 8918 [2024-11-16 04:15:29,209 INFO L226 Difference]: Without dead ends: 5285 [2024-11-16 04:15:29,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:29,215 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 221 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:29,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 431 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 04:15:29,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5285 states. [2024-11-16 04:15:29,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5285 to 5285. [2024-11-16 04:15:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5285 states, 5284 states have (on average 1.0598031794095382) internal successors, (5600), 5284 states have internal predecessors, (5600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:29,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5285 states to 5285 states and 5600 transitions. [2024-11-16 04:15:29,326 INFO L78 Accepts]: Start accepts. Automaton has 5285 states and 5600 transitions. Word has length 840 [2024-11-16 04:15:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:29,327 INFO L471 AbstractCegarLoop]: Abstraction has 5285 states and 5600 transitions. [2024-11-16 04:15:29,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 5285 states and 5600 transitions. [2024-11-16 04:15:29,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2024-11-16 04:15:29,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:29,338 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-16 04:15:29,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 04:15:29,339 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:29,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:29,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1563105919, now seen corresponding path program 1 times [2024-11-16 04:15:29,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:29,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164508765] [2024-11-16 04:15:29,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:29,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:30,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1598 backedges. 1111 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2024-11-16 04:15:30,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:30,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164508765] [2024-11-16 04:15:30,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164508765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:30,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:30,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:15:30,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992397622] [2024-11-16 04:15:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:30,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:30,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:30,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:30,116 INFO L87 Difference]: Start difference. First operand 5285 states and 5600 transitions. Second operand has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:30,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:30,968 INFO L93 Difference]: Finished difference Result 11888 states and 12654 transitions. [2024-11-16 04:15:30,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:30,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 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 903 [2024-11-16 04:15:30,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:30,985 INFO L225 Difference]: With dead ends: 11888 [2024-11-16 04:15:30,986 INFO L226 Difference]: Without dead ends: 6935 [2024-11-16 04:15:30,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:30,992 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 175 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:30,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 419 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 760 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 04:15:30,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6935 states. [2024-11-16 04:15:31,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6935 to 6605. [2024-11-16 04:15:31,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6605 states, 6604 states have (on average 1.0445184736523319) internal successors, (6898), 6604 states have internal predecessors, (6898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:31,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6605 states to 6605 states and 6898 transitions. [2024-11-16 04:15:31,105 INFO L78 Accepts]: Start accepts. Automaton has 6605 states and 6898 transitions. Word has length 903 [2024-11-16 04:15:31,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:31,106 INFO L471 AbstractCegarLoop]: Abstraction has 6605 states and 6898 transitions. [2024-11-16 04:15:31,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:31,107 INFO L276 IsEmpty]: Start isEmpty. Operand 6605 states and 6898 transitions. [2024-11-16 04:15:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1279 [2024-11-16 04:15:31,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:31,124 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:31,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 04:15:31,125 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:31,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:31,125 INFO L85 PathProgramCache]: Analyzing trace with hash -205847103, now seen corresponding path program 1 times [2024-11-16 04:15:31,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:31,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083948175] [2024-11-16 04:15:31,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:31,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2945 backedges. 1698 proven. 0 refuted. 0 times theorem prover too weak. 1247 trivial. 0 not checked. [2024-11-16 04:15:32,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:32,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083948175] [2024-11-16 04:15:32,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083948175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:32,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 04:15:32,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520262968] [2024-11-16 04:15:32,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:32,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 04:15:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:32,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 04:15:32,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:32,879 INFO L87 Difference]: Start difference. First operand 6605 states and 6898 transitions. Second operand has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:33,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:33,643 INFO L93 Difference]: Finished difference Result 13868 states and 14517 transitions. [2024-11-16 04:15:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 04:15:33,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 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 1278 [2024-11-16 04:15:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:33,669 INFO L225 Difference]: With dead ends: 13868 [2024-11-16 04:15:33,670 INFO L226 Difference]: Without dead ends: 7595 [2024-11-16 04:15:33,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 04:15:33,678 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 224 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:33,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 444 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 04:15:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7595 states. [2024-11-16 04:15:33,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7595 to 7595. [2024-11-16 04:15:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7595 states, 7594 states have (on average 1.0396365551751383) internal successors, (7895), 7594 states have internal predecessors, (7895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:33,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7595 states to 7595 states and 7895 transitions. [2024-11-16 04:15:33,790 INFO L78 Accepts]: Start accepts. Automaton has 7595 states and 7895 transitions. Word has length 1278 [2024-11-16 04:15:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:33,792 INFO L471 AbstractCegarLoop]: Abstraction has 7595 states and 7895 transitions. [2024-11-16 04:15:33,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 7595 states and 7895 transitions. [2024-11-16 04:15:33,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1297 [2024-11-16 04:15:33,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 04:15:33,811 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:33,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 04:15:33,812 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 04:15:33,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 04:15:33,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1825793688, now seen corresponding path program 1 times [2024-11-16 04:15:33,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 04:15:33,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974122691] [2024-11-16 04:15:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 04:15:33,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 04:15:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 04:15:35,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 2668 trivial. 0 not checked. [2024-11-16 04:15:35,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 04:15:35,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974122691] [2024-11-16 04:15:35,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974122691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 04:15:35,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 04:15:35,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 04:15:35,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288132666] [2024-11-16 04:15:35,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 04:15:35,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 04:15:35,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 04:15:35,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 04:15:35,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:15:35,390 INFO L87 Difference]: Start difference. First operand 7595 states and 7895 transitions. Second operand has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:36,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 04:15:36,064 INFO L93 Difference]: Finished difference Result 14586 states and 15170 transitions. [2024-11-16 04:15:36,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 04:15:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 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 1296 [2024-11-16 04:15:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 04:15:36,067 INFO L225 Difference]: With dead ends: 14586 [2024-11-16 04:15:36,067 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 04:15:36,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-16 04:15:36,077 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 23 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 945 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 04:15:36,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 463 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 945 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 04:15:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 04:15:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 04:15:36,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:36,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 04:15:36,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1296 [2024-11-16 04:15:36,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 04:15:36,079 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 04:15:36,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.0) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 04:15:36,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 04:15:36,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 04:15:36,086 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 04:15:36,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 04:15:36,092 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 04:15:36,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 04:15:36,237 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 04:15:36,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 04:15:36 BoogieIcfgContainer [2024-11-16 04:15:36,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 04:15:36,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 04:15:36,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 04:15:36,253 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 04:15:36,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 04:15:17" (3/4) ... [2024-11-16 04:15:36,256 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 04:15:36,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-16 04:15:36,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-16 04:15:36,290 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 04:15:36,292 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 04:15:36,501 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 04:15:36,502 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 04:15:36,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 04:15:36,503 INFO L158 Benchmark]: Toolchain (without parser) took 22430.06ms. Allocated memory was 155.2MB in the beginning and 625.0MB in the end (delta: 469.8MB). Free memory was 77.9MB in the beginning and 297.2MB in the end (delta: -219.4MB). Peak memory consumption was 251.8MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,504 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 04:15:36,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 919.56ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 77.5MB in the beginning and 125.2MB in the end (delta: -47.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 156.09ms. Allocated memory is still 199.2MB. Free memory was 125.2MB in the beginning and 101.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,505 INFO L158 Benchmark]: Boogie Preprocessor took 195.98ms. Allocated memory is still 199.2MB. Free memory was 101.1MB in the beginning and 67.3MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,506 INFO L158 Benchmark]: IcfgBuilder took 2186.12ms. Allocated memory was 199.2MB in the beginning and 291.5MB in the end (delta: 92.3MB). Free memory was 67.3MB in the beginning and 222.0MB in the end (delta: -154.7MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,506 INFO L158 Benchmark]: TraceAbstraction took 18714.15ms. Allocated memory was 291.5MB in the beginning and 625.0MB in the end (delta: 333.4MB). Free memory was 221.0MB in the beginning and 323.5MB in the end (delta: -102.5MB). Peak memory consumption was 231.0MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,508 INFO L158 Benchmark]: Witness Printer took 248.86ms. Allocated memory is still 625.0MB. Free memory was 323.5MB in the beginning and 297.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-16 04:15:36,509 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 155.2MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 919.56ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 77.5MB in the beginning and 125.2MB in the end (delta: -47.7MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 156.09ms. Allocated memory is still 199.2MB. Free memory was 125.2MB in the beginning and 101.1MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 195.98ms. Allocated memory is still 199.2MB. Free memory was 101.1MB in the beginning and 67.3MB in the end (delta: 33.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * IcfgBuilder took 2186.12ms. Allocated memory was 199.2MB in the beginning and 291.5MB in the end (delta: 92.3MB). Free memory was 67.3MB in the beginning and 222.0MB in the end (delta: -154.7MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * TraceAbstraction took 18714.15ms. Allocated memory was 291.5MB in the beginning and 625.0MB in the end (delta: 333.4MB). Free memory was 221.0MB in the beginning and 323.5MB in the end (delta: -102.5MB). Peak memory consumption was 231.0MB. Max. memory is 16.1GB. * Witness Printer took 248.86ms. Allocated memory is still 625.0MB. Free memory was 323.5MB in the beginning and 297.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. 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: 152]: 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, 399 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.5s, OverallIterations: 9, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2918 SdHoareTripleChecker+Valid, 10.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2918 mSDsluCounter, 2848 SdHoareTripleChecker+Invalid, 8.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 2127 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8065 IncrementalHoareTripleChecker+Invalid, 10192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2127 mSolverCounterUnsat, 2758 mSDtfsCounter, 8065 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7595occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 660 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 5638 NumberOfCodeBlocks, 5638 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5629 ConstructedInterpolants, 0 QuantifiedInterpolants, 9098 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 10731/10731 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: 1783]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 04:15:36,538 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