./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et4_true.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_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/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_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et4_true.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/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_df3aa066-6c15-4ded-a048-3b7394445f8b/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 fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:53:29,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:53:29,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 21:53:29,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:53:29,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:53:29,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:53:29,165 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:53:29,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:53:29,166 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:53:29,167 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:53:29,167 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:53:29,168 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:53:29,169 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:53:29,169 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:53:29,170 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:53:29,171 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:53:29,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:53:29,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:53:29,172 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:53:29,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:53:29,174 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:53:29,174 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:53:29,175 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:53:29,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:53:29,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:53:29,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:53:29,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:53:29,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:29,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:53:29,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:53:29,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:53:29,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:53:29,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:53:29,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:53:29,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:53:29,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:53:29,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:53:29,183 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:53:29,183 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_df3aa066-6c15-4ded-a048-3b7394445f8b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd425c4b2002ad50235bdf7942d03f600c35812ae9d16cfe392f9b6ae03e09d0 [2023-11-06 21:53:29,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:53:29,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:53:29,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:53:29,508 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:53:29,509 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:53:29,511 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/termination-numeric/Et4_true.c [2023-11-06 21:53:32,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:53:32,854 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:53:32,854 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/sv-benchmarks/c/termination-numeric/Et4_true.c [2023-11-06 21:53:32,863 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/data/3a3cd0ef9/bfacccfc259545c7beeef9e939adcabf/FLAG7b88ee04b [2023-11-06 21:53:32,879 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/data/3a3cd0ef9/bfacccfc259545c7beeef9e939adcabf [2023-11-06 21:53:32,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:53:32,884 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:53:32,885 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:32,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:53:32,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:53:32,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7042b212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:32, skipping insertion in model container [2023-11-06 21:53:32,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:53:32" (1/1) ... [2023-11-06 21:53:32,917 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:53:33,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:33,124 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:53:33,140 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:53:33,179 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:53:33,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33 WrapperNode [2023-11-06 21:53:33,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:53:33,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:33,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:53:33,182 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:53:33,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,227 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,257 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-06 21:53:33,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:53:33,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:53:33,260 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:53:33,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:53:33,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,275 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,282 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,284 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:53:33,285 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:53:33,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:53:33,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:53:33,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (1/1) ... [2023-11-06 21:53:33,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:53:33,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:53:33,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:53:33,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:53:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure random [2023-11-06 21:53:33,365 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2023-11-06 21:53:33,365 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2023-11-06 21:53:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2023-11-06 21:53:33,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:53:33,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:53:33,435 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:53:33,437 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:53:33,664 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:53:33,673 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:53:33,680 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:53:33,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33 BoogieIcfgContainer [2023-11-06 21:53:33,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:53:33,685 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:53:33,685 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:53:33,689 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:53:33,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:53:32" (1/3) ... [2023-11-06 21:53:33,690 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09ae16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:33, skipping insertion in model container [2023-11-06 21:53:33,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:53:33" (2/3) ... [2023-11-06 21:53:33,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09ae16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:53:33, skipping insertion in model container [2023-11-06 21:53:33,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33" (3/3) ... [2023-11-06 21:53:33,692 INFO L112 eAbstractionObserver]: Analyzing ICFG Et4_true.c [2023-11-06 21:53:33,712 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:53:33,712 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 21:53:33,778 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:53:33,790 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;@6732b11e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:53:33,791 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 21:53:33,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 32 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-06 21:53:33,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 21:53:33,803 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:33,804 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:53:33,805 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 21:53:33,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:33,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1895690800, now seen corresponding path program 1 times [2023-11-06 21:53:33,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:33,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126424384] [2023-11-06 21:53:33,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:33,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:53:34,029 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 21:53:34,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:53:34,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126424384] [2023-11-06 21:53:34,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126424384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:53:34,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:53:34,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:53:34,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49540360] [2023-11-06 21:53:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:53:34,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:53:34,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:53:34,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:53:34,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:53:34,084 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 32 states have internal predecessors, (34), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-06 21:53:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:53:34,143 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2023-11-06 21:53:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:53:34,146 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), 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 [2023-11-06 21:53:34,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:53:34,155 INFO L225 Difference]: With dead ends: 43 [2023-11-06 21:53:34,155 INFO L226 Difference]: Without dead ends: 35 [2023-11-06 21:53:34,159 INFO L412 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 [2023-11-06 21:53:34,166 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:53:34,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 90 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:53:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-06 21:53:34,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2023-11-06 21:53:34,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 26 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-06 21:53:34,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-11-06 21:53:34,227 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 6 [2023-11-06 21:53:34,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:53:34,228 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-11-06 21:53:34,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2023-11-06 21:53:34,229 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-11-06 21:53:34,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 21:53:34,230 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:53:34,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:53:34,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:53:34,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 21:53:34,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:53:34,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1363127307, now seen corresponding path program 1 times [2023-11-06 21:53:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:53:34,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968890214] [2023-11-06 21:53:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:53:34,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:53:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:53:34,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:53:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:53:34,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:53:34,313 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 21:53:34,315 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 21:53:34,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 21:53:34,318 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 21:53:34,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 21:53:34,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 21:53:34,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 21:53:34,322 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 21:53:34,327 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location loopErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 21:53:34,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 21:53:34,333 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 21:53:34,339 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 21:53:34,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:53:34 BoogieIcfgContainer [2023-11-06 21:53:34,358 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 21:53:34,359 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:53:34,359 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:53:34,360 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:53:34,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:53:33" (3/4) ... [2023-11-06 21:53:34,362 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 21:53:34,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:53:34,422 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:53:34,423 INFO L158 Benchmark]: Toolchain (without parser) took 1539.36ms. Allocated memory is still 163.6MB. Free memory was 124.2MB in the beginning and 93.3MB in the end (delta: 30.9MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,423 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:34,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.40ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 134.6MB in the end (delta: -11.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.75ms. Allocated memory is still 163.6MB. Free memory was 134.6MB in the beginning and 133.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,427 INFO L158 Benchmark]: Boogie Preprocessor took 25.79ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 132.5MB in the end (delta: 724.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:53:34,427 INFO L158 Benchmark]: RCFGBuilder took 398.52ms. Allocated memory is still 163.6MB. Free memory was 132.5MB in the beginning and 120.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,428 INFO L158 Benchmark]: TraceAbstraction took 673.35ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 95.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,428 INFO L158 Benchmark]: Witness Printer took 63.15ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:53:34,434 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.40ms. Allocated memory is still 163.6MB. Free memory was 123.5MB in the beginning and 134.6MB in the end (delta: -11.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.75ms. Allocated memory is still 163.6MB. Free memory was 134.6MB in the beginning and 133.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.79ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 132.5MB in the end (delta: 724.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 398.52ms. Allocated memory is still 163.6MB. Free memory was 132.5MB in the beginning and 120.6MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 673.35ms. Allocated memory is still 163.6MB. Free memory was 119.9MB in the beginning and 95.4MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 63.15ms. Allocated memory is still 163.6MB. Free memory was 95.4MB in the beginning and 93.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L28] CALL random() [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 VAL [x=-2147483648] [L35] -x VAL [x=-2147483648] - UnprovableResult [Line: 35]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 41]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 44]: 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 3 procedures, 41 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 47 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 21:53:34,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3aa066-6c15-4ded-a048-3b7394445f8b/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)