./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/joey.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/joey.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:40:33,397 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:40:33,492 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:40:33,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:40:33,499 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:40:33,537 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:40:33,538 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:40:33,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:40:33,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:40:33,539 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:40:33,539 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:40:33,540 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:40:33,540 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:40:33,540 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:40:33,541 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:40:33,541 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:40:33,541 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:40:33,541 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:40:33,541 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:40:33,541 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:40:33,542 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:40:33,542 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:40:33,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:40:33,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:40:33,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:40:33,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:40:33,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:40:33,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:40:33,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:40:33,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:40:33,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:40:33,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:40:33,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:40:33,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:40:33,546 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> b8eecb1f582817a24edea1132ecb15ddc358f67da7ed612a076c099e943ee704 [2024-11-14 04:40:33,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:40:33,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:40:33,878 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:40:33,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:40:33,880 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:40:33,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/termination-crafted-lit/joey.c Unable to find full path for "g++" [2024-11-14 04:40:35,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:40:35,979 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:40:35,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/sv-benchmarks/c/termination-crafted-lit/joey.c [2024-11-14 04:40:36,000 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/data/8ac6b06c8/b3b83495a4b24f2a9bc904fef773a5b9/FLAG1581221ca [2024-11-14 04:40:36,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/data/8ac6b06c8/b3b83495a4b24f2a9bc904fef773a5b9 [2024-11-14 04:40:36,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:40:36,048 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:40:36,050 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:40:36,050 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:40:36,054 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:40:36,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e601d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36, skipping insertion in model container [2024-11-14 04:40:36,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:40:36,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:40:36,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:40:36,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:40:36,258 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:40:36,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36 WrapperNode [2024-11-14 04:40:36,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:40:36,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:40:36,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:40:36,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:40:36,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,271 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,286 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2024-11-14 04:40:36,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:40:36,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:40:36,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:40:36,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:40:36,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:40:36,310 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:40:36,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:40:36,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:40:36,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (1/1) ... [2024-11-14 04:40:36,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:40:36,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:36,352 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:40:36,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:40:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2024-11-14 04:40:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2024-11-14 04:40:36,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:40:36,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:40:36,453 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:40:36,455 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:40:36,596 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-14 04:40:36,596 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:40:36,621 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:40:36,621 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:40:36,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:36 BoogieIcfgContainer [2024-11-14 04:40:36,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:40:36,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:40:36,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:40:36,627 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:40:36,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:40:36" (1/3) ... [2024-11-14 04:40:36,628 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948d99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:40:36, skipping insertion in model container [2024-11-14 04:40:36,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:40:36" (2/3) ... [2024-11-14 04:40:36,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6948d99d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:40:36, skipping insertion in model container [2024-11-14 04:40:36,629 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:36" (3/3) ... [2024-11-14 04:40:36,630 INFO L112 eAbstractionObserver]: Analyzing ICFG joey.c [2024-11-14 04:40:36,644 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:40:36,645 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG joey.c that has 2 procedures, 31 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-14 04:40:36,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:40:36,716 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=FINITE_AUTOMATA, 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;@72f566b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:40:36,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-14 04:40:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-14 04:40:36,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-14 04:40:36,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:36,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-14 04:40:36,732 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 04:40:36,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:36,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1990778332, now seen corresponding path program 1 times [2024-11-14 04:40:36,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994625795] [2024-11-14 04:40:36,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:36,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:37,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:40:37,047 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:37,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994625795] [2024-11-14 04:40:37,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994625795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:37,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:40:37,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:40:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944596435] [2024-11-14 04:40:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:37,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-14 04:40:37,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-14 04:40:37,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:40:37,078 INFO L87 Difference]: Start difference. First operand has 31 states, 17 states have (on average 1.588235294117647) internal successors, (27), 25 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:40:37,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:37,204 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2024-11-14 04:40:37,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-14 04:40:37,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-14 04:40:37,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:37,217 INFO L225 Difference]: With dead ends: 33 [2024-11-14 04:40:37,217 INFO L226 Difference]: Without dead ends: 28 [2024-11-14 04:40:37,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-14 04:40:37,223 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 14 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:37,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 38 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:40:37,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-14 04:40:37,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-14 04:40:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.4375) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 04:40:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-14 04:40:37,266 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 6 [2024-11-14 04:40:37,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:37,267 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-14 04:40:37,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:40:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-14 04:40:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 04:40:37,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:37,270 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:37,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:40:37,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 04:40:37,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:37,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1584586107, now seen corresponding path program 1 times [2024-11-14 04:40:37,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:37,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468054490] [2024-11-14 04:40:37,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:37,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:40:37,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:37,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468054490] [2024-11-14 04:40:37,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468054490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:37,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:40:37,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-14 04:40:37,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021822203] [2024-11-14 04:40:37,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:37,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 04:40:37,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:37,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 04:40:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-14 04:40:37,638 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:40:37,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:37,815 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2024-11-14 04:40:37,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-14 04:40:37,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-14 04:40:37,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:37,817 INFO L225 Difference]: With dead ends: 51 [2024-11-14 04:40:37,817 INFO L226 Difference]: Without dead ends: 44 [2024-11-14 04:40:37,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-14 04:40:37,819 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 37 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:37,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 61 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:40:37,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-14 04:40:37,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2024-11-14 04:40:37,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 33 states have internal predecessors, (38), 7 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-14 04:40:37,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2024-11-14 04:40:37,835 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 7 [2024-11-14 04:40:37,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:37,835 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2024-11-14 04:40:37,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-14 04:40:37,837 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2024-11-14 04:40:37,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-14 04:40:37,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:37,838 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:40:37,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:40:37,838 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-14 04:40:37,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1584579156, now seen corresponding path program 1 times [2024-11-14 04:40:37,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:37,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556007231] [2024-11-14 04:40:37,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:37,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:40:37,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:40:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:40:37,885 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:40:37,886 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:40:37,887 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-14 04:40:37,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-14 04:40:37,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-14 04:40:37,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-14 04:40:37,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-14 04:40:37,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-14 04:40:37,890 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-14 04:40:37,891 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location recErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-14 04:40:37,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:40:37,895 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-14 04:40:37,910 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:40:37,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:40:37 BoogieIcfgContainer [2024-11-14 04:40:37,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:40:37,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:40:37,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:40:37,914 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:40:37,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:40:36" (3/4) ... [2024-11-14 04:40:37,916 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 04:40:37,949 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:40:37,950 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:40:37,950 INFO L158 Benchmark]: Toolchain (without parser) took 1901.90ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 80.9MB in the end (delta: 13.1MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-11-14 04:40:37,951 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:40:37,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.28ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 83.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:40:37,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.68ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:40:37,951 INFO L158 Benchmark]: Boogie Preprocessor took 22.69ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 82.3MB in the end (delta: 366.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:40:37,952 INFO L158 Benchmark]: RCFGBuilder took 311.63ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 70.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:40:37,953 INFO L158 Benchmark]: TraceAbstraction took 1290.26ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 82.6MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:40:37,954 INFO L158 Benchmark]: Witness Printer took 35.58ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:40:37,959 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 167.8MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.28ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 83.8MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.68ms. Allocated memory is still 117.4MB. Free memory was 83.8MB in the beginning and 82.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.69ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 82.3MB in the end (delta: 366.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.63ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 70.9MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1290.26ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 82.6MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 35.58ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 80.9MB in the end (delta: 1.7MB). There was no memory consumed. 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 - CounterExampleResult [Line: 15]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y; VAL [x=2147483647] [L22] CALL rec(x) VAL [\old(x)=2147483647] [L10] COND FALSE !(x <= 0) VAL [\old(x)=2147483647, x=2147483647] [L12] COND FALSE !(x%2 == 0) VAL [\old(x)=2147483647, x=2147483647] [L15] ++x VAL [\old(x)=2147483647] - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 13]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 15]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 31 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 40 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=2, InterpolantAutomatonStates: 11, 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, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-14 04:40:37,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50d562ea-523a-4779-87ac-ce5c7a56bf85/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)