./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-dietlibc/strlen.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f 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/termination-dietlibc/strlen.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 34b0c24ca65344579aaae251146dead1808e12ac6f6737a3aee037d4f6e47452 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:57:16,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:57:16,251 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-12 16:57:16,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:57:16,258 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:57:16,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:57:16,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:57:16,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:57:16,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:57:16,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:57:16,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:57:16,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:57:16,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:57:16,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:57:16,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:57:16,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:57:16,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 16:57:16,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:57:16,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:57:16,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 16:57:16,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:57:16,294 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 16:57:16,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:57:16,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 16:57:16,295 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:57:16,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 16:57:16,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:57:16,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:57:16,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:57:16,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:57:16,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:57:16,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:57:16,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:57:16,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:57:16,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 16:57:16,297 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:57:16,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:57:16,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:57:16,297 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:57:16,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:57:16,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:57:16,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b0c24ca65344579aaae251146dead1808e12ac6f6737a3aee037d4f6e47452 [2024-11-12 16:57:16,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:57:16,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:57:16,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:57:16,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:57:16,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:57:16,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strlen.i [2024-11-12 16:57:17,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:57:18,137 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:57:18,138 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strlen.i [2024-11-12 16:57:18,149 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb7d86c1/3ff20ed5d40046669a359adfeb7fad85/FLAG826aeeb45 [2024-11-12 16:57:18,480 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb7d86c1/3ff20ed5d40046669a359adfeb7fad85 [2024-11-12 16:57:18,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:57:18,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:57:18,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:57:18,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:57:18,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:57:18,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,491 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c903350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18, skipping insertion in model container [2024-11-12 16:57:18,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:57:18,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:57:18,775 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:57:18,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:57:18,901 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:57:18,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18 WrapperNode [2024-11-12 16:57:18,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:57:18,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:57:18,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:57:18,903 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:57:18,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,940 INFO L138 Inliner]: procedures = 113, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2024-11-12 16:57:18,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:57:18,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:57:18,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:57:18,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:57:18,951 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,951 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,973 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 1 writes are split as follows [1]. [2024-11-12 16:57:18,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,977 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,985 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,990 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:57:18,991 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:57:18,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:57:18,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:57:18,992 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (1/1) ... [2024-11-12 16:57:18,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:57:19,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:57:19,024 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) [2024-11-12 16:57:19,026 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 [2024-11-12 16:57:19,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 16:57:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 16:57:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 16:57:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 16:57:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:57:19,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:57:19,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:57:19,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:57:19,268 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-12 16:57:19,268 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:57:19,279 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:57:19,280 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 16:57:19,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:57:19 BoogieIcfgContainer [2024-11-12 16:57:19,281 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:57:19,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:57:19,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:57:19,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:57:19,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:57:18" (1/3) ... [2024-11-12 16:57:19,287 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7433e221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:57:19, skipping insertion in model container [2024-11-12 16:57:19,287 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:57:18" (2/3) ... [2024-11-12 16:57:19,288 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7433e221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:57:19, skipping insertion in model container [2024-11-12 16:57:19,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:57:19" (3/3) ... [2024-11-12 16:57:19,289 INFO L112 eAbstractionObserver]: Analyzing ICFG strlen.i [2024-11-12 16:57:19,301 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:57:19,302 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:57:19,355 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:57:19,361 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;@c72ead1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:57:19,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-12 16:57:19,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-12 16:57:19,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:57:19,372 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-12 16:57:19,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 16:57:19,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:57:19,379 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2024-11-12 16:57:19,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:57:19,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651367713] [2024-11-12 16:57:19,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:57:19,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:57:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:57:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:57:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:57:19,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651367713] [2024-11-12 16:57:19,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651367713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:57:19,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:57:19,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:57:19,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990149404] [2024-11-12 16:57:19,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:57:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:57:19,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:57:19,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:57:19,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:57:19,571 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 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, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:57:19,599 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2024-11-12 16:57:19,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:57:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 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 4 [2024-11-12 16:57:19,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:57:19,607 INFO L225 Difference]: With dead ends: 21 [2024-11-12 16:57:19,607 INFO L226 Difference]: Without dead ends: 6 [2024-11-12 16:57:19,610 INFO L434 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 [2024-11-12 16:57:19,613 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:57:19,614 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:57:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-11-12 16:57:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-11-12 16:57:19,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.0) internal successors, (5), 5 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2024-11-12 16:57:19,640 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2024-11-12 16:57:19,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:57:19,640 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2024-11-12 16:57:19,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,641 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2024-11-12 16:57:19,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-12 16:57:19,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 16:57:19,641 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 16:57:19,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:57:19,642 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-12 16:57:19,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:57:19,643 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2024-11-12 16:57:19,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:57:19,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191739643] [2024-11-12 16:57:19,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:57:19,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:57:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:57:19,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:57:19,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:57:19,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191739643] [2024-11-12 16:57:19,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191739643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:57:19,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:57:19,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:57:19,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885958167] [2024-11-12 16:57:19,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:57:19,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:57:19,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:57:19,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:57:19,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:57:19,700 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 16:57:19,705 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2024-11-12 16:57:19,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:57:19,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2024-11-12 16:57:19,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 16:57:19,706 INFO L225 Difference]: With dead ends: 6 [2024-11-12 16:57:19,706 INFO L226 Difference]: Without dead ends: 0 [2024-11-12 16:57:19,706 INFO L434 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 [2024-11-12 16:57:19,707 INFO L435 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 16:57:19,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 16:57:19,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-12 16:57:19,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-12 16:57:19,709 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) [2024-11-12 16:57:19,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-12 16:57:19,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2024-11-12 16:57:19,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 16:57:19,710 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-12 16:57:19,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:57:19,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-12 16:57:19,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-12 16:57:19,713 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-12 16:57:19,714 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-12 16:57:19,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:57:19,717 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 16:57:19,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-12 16:57:19,728 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:57:19,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:57:19 BoogieIcfgContainer [2024-11-12 16:57:19,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:57:19,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:57:19,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:57:19,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:57:19,757 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:57:19" (3/4) ... [2024-11-12 16:57:19,760 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:57:19,774 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-12 16:57:19,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 16:57:19,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-12 16:57:19,775 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 16:57:19,901 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:57:19,901 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:57:19,901 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:57:19,903 INFO L158 Benchmark]: Toolchain (without parser) took 1418.97ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 78.6MB in the beginning and 197.6MB in the end (delta: -119.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:57:19,903 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:57:19,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.93ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 78.5MB in the beginning and 202.3MB in the end (delta: -123.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2024-11-12 16:57:19,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.04ms. Allocated memory is still 232.8MB. Free memory was 201.2MB in the beginning and 200.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:57:19,906 INFO L158 Benchmark]: Boogie Preprocessor took 49.72ms. Allocated memory is still 232.8MB. Free memory was 200.2MB in the beginning and 198.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:57:19,906 INFO L158 Benchmark]: RCFGBuilder took 290.51ms. Allocated memory is still 232.8MB. Free memory was 198.1MB in the beginning and 186.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 16:57:19,906 INFO L158 Benchmark]: TraceAbstraction took 467.38ms. Allocated memory is still 232.8MB. Free memory was 185.5MB in the beginning and 201.8MB in the end (delta: -16.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-12 16:57:19,906 INFO L158 Benchmark]: Witness Printer took 149.55ms. Allocated memory is still 232.8MB. Free memory was 201.8MB in the beginning and 197.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:57:19,907 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 151.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.93ms. Allocated memory was 151.0MB in the beginning and 232.8MB in the end (delta: 81.8MB). Free memory was 78.5MB in the beginning and 202.3MB in the end (delta: -123.8MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.04ms. Allocated memory is still 232.8MB. Free memory was 201.2MB in the beginning and 200.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.72ms. Allocated memory is still 232.8MB. Free memory was 200.2MB in the beginning and 198.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.51ms. Allocated memory is still 232.8MB. Free memory was 198.1MB in the beginning and 186.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 467.38ms. Allocated memory is still 232.8MB. Free memory was 185.5MB in the beginning and 201.8MB in the end (delta: -16.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 149.55ms. Allocated memory is still 232.8MB. Free memory was 201.8MB in the beginning and 197.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 516]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-12 16:57:19,942 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