./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 aab554f69da132932fe6c9f9ba152534b5f1c86cbd2c747f8c8ef14210bfbda8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:59:55,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:59:55,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 21:59:55,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:59:55,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:59:55,395 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:59:55,396 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:59:55,396 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:59:55,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:59:55,398 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:59:55,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:59:55,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:59:55,399 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:59:55,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:59:55,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:59:55,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:59:55,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:59:55,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:59:55,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:59:55,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:59:55,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:59:55,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:59:55,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:59:55,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:59:55,406 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:59:55,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:59:55,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:59:55,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:55,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:59:55,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:59:55,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:59:55,410 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:59:55,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:59:55,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:59:55,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:59:55,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:59:55,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:59:55,426 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:59:55,426 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aab554f69da132932fe6c9f9ba152534b5f1c86cbd2c747f8c8ef14210bfbda8 [2023-11-06 21:59:55,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:59:55,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:59:55,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:59:55,845 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:59:55,846 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:59:55,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c [2023-11-06 21:59:58,954 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:59:59,197 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:59:59,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex3.c [2023-11-06 21:59:59,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/data/f52e12330/e35027f36c9e4ef2b2fac71b5d753a10/FLAGbce998d94 [2023-11-06 21:59:59,221 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/data/f52e12330/e35027f36c9e4ef2b2fac71b5d753a10 [2023-11-06 21:59:59,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:59:59,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:59:59,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:59,242 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:59:59,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:59:59,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63acf0fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59, skipping insertion in model container [2023-11-06 21:59:59,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,274 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:59:59,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:59,464 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:59:59,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:59:59,495 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:59:59,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59 WrapperNode [2023-11-06 21:59:59,496 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:59:59,497 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:59,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:59:59,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:59:59,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,510 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,529 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2023-11-06 21:59:59,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:59:59,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:59:59,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:59:59,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:59:59,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,550 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:59:59,551 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:59:59,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:59:59,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:59:59,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (1/1) ... [2023-11-06 21:59:59,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:59:59,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:59:59,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:59:59,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:59:59,638 INFO L130 BoogieDeclarations]: Found specification of procedure a [2023-11-06 21:59:59,638 INFO L138 BoogieDeclarations]: Found implementation of procedure a [2023-11-06 21:59:59,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:59:59,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:59:59,709 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:59:59,711 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:59:59,993 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:00:00,003 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:00:00,010 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:00:00,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:00 BoogieIcfgContainer [2023-11-06 22:00:00,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:00:00,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:00:00,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:00:00,021 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:00:00,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:59" (1/3) ... [2023-11-06 22:00:00,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bae475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:00, skipping insertion in model container [2023-11-06 22:00:00,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:59" (2/3) ... [2023-11-06 22:00:00,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31bae475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:00:00, skipping insertion in model container [2023-11-06 22:00:00,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:00" (3/3) ... [2023-11-06 22:00:00,025 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex3.c [2023-11-06 22:00:00,047 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:00:00,047 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:00:00,113 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:00:00,122 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@1054411e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:00:00,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:00:00,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 22 states have (on average 1.5) internal successors, (33), 30 states have internal predecessors, (33), 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) [2023-11-06 22:00:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:00:00,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:00,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:00,136 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting aErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [aErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-11-06 22:00:00,144 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:00,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1087297486, now seen corresponding path program 1 times [2023-11-06 22:00:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:00,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995649841] [2023-11-06 22:00:00,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:00,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:00:00,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:00:00,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:00:00,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995649841] [2023-11-06 22:00:00,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995649841] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:00:00,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:00:00,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:00:00,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513653962] [2023-11-06 22:00:00,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:00:00,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:00:00,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:00:00,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:00:00,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:00:00,473 INFO L87 Difference]: Start difference. First operand has 36 states, 22 states have (on average 1.5) internal successors, (33), 30 states have internal predecessors, (33), 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 5 states, 3 states have (on average 2.0) 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) [2023-11-06 22:00:00,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:00:00,634 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2023-11-06 22:00:00,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:00:00,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) 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 [2023-11-06 22:00:00,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:00:00,649 INFO L225 Difference]: With dead ends: 66 [2023-11-06 22:00:00,650 INFO L226 Difference]: Without dead ends: 57 [2023-11-06 22:00:00,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:00:00,656 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 56 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:00:00,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 114 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:00:00,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-11-06 22:00:00,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 49. [2023-11-06 22:00:00,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.5151515151515151) internal successors, (50), 40 states have internal predecessors, (50), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 22:00:00,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2023-11-06 22:00:00,708 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 7 [2023-11-06 22:00:00,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:00:00,709 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2023-11-06 22:00:00,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) 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) [2023-11-06 22:00:00,710 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2023-11-06 22:00:00,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:00:00,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:00:00,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:00:00,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:00:00,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting aErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [aErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, aErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 4 more)] === [2023-11-06 22:00:00,712 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:00:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash -653516265, now seen corresponding path program 1 times [2023-11-06 22:00:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:00:00,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059219788] [2023-11-06 22:00:00,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:00:00,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:00:00,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:00:00,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:00:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:00:00,746 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:00:00,747 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:00:00,748 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location aErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 22:00:00,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 22:00:00,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 22:00:00,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 22:00:00,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 22:00:00,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 22:00:00,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 22:00:00,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location aErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 22:00:00,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:00:00,757 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:00:00,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:00:00,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:00:00 BoogieIcfgContainer [2023-11-06 22:00:00,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:00:00,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:00:00,780 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:00:00,780 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:00:00,781 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:00:00" (3/4) ... [2023-11-06 22:00:00,782 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:00:00,817 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:00:00,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:00:00,818 INFO L158 Benchmark]: Toolchain (without parser) took 1578.16ms. Allocated memory is still 165.7MB. Free memory was 137.8MB in the beginning and 100.1MB in the end (delta: 37.6MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2023-11-06 22:00:00,819 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:00:00,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.77ms. Allocated memory is still 165.7MB. Free memory was 137.8MB in the beginning and 128.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:00:00,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.00ms. Allocated memory is still 165.7MB. Free memory was 128.1MB in the beginning and 126.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:00:00,821 INFO L158 Benchmark]: Boogie Preprocessor took 19.13ms. Allocated memory is still 165.7MB. Free memory was 126.5MB in the beginning and 126.0MB in the end (delta: 511.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:00:00,821 INFO L158 Benchmark]: RCFGBuilder took 462.79ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 131.7MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:00:00,822 INFO L158 Benchmark]: TraceAbstraction took 763.74ms. Allocated memory is still 165.7MB. Free memory was 131.7MB in the beginning and 101.1MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-06 22:00:00,822 INFO L158 Benchmark]: Witness Printer took 37.83ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 100.1MB in the end (delta: 936.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:00:00,825 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory was 95.6MB in the beginning and 95.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.77ms. Allocated memory is still 165.7MB. Free memory was 137.8MB in the beginning and 128.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.00ms. Allocated memory is still 165.7MB. Free memory was 128.1MB in the beginning and 126.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.13ms. Allocated memory is still 165.7MB. Free memory was 126.5MB in the beginning and 126.0MB in the end (delta: 511.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 462.79ms. Allocated memory is still 165.7MB. Free memory was 126.0MB in the beginning and 131.7MB in the end (delta: -5.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 763.74ms. Allocated memory is still 165.7MB. Free memory was 131.7MB in the beginning and 101.1MB in the end (delta: 30.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 37.83ms. Allocated memory is still 165.7MB. Free memory was 101.1MB in the beginning and 100.1MB in the end (delta: 936.1kB). 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: 14]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int m = __VERIFIER_nondet_int(); [L26] int n = __VERIFIER_nondet_int(); [L27] COND TRUE m >= 0 && n >= 0 VAL [m=0, n=2147483647] [L28] CALL a(m,n) VAL [\old(m)=0, \old(n)=2147483647] [L13] COND TRUE m <= 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L14] n + 1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] - UnprovableResult [Line: 14]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 17]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 19]: 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, 36 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 35 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=1, 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, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2023-11-06 22:00:00,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ffb63-98d2-4d70-844a-c5864c9727e6/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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)