./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c748f99bd7e32062f9ec04be4b4ab36b7029b7702b06f8ab22dc96bac7290a8 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:15,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:15,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 21:02:15,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:15,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:15,243 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:15,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:15,246 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:15,247 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:02:15,253 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:02:15,254 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:15,255 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:15,256 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:15,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:15,259 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:15,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:15,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:15,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:15,262 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:15,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:15,263 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:15,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:15,264 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:02:15,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:15,265 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:15,266 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:15,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:15,267 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:15,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:02:15,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:15,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:15,270 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:15,270 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:15,271 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:15,271 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:15,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:02:15,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:15,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:15,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:15,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:15,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:15,274 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_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c748f99bd7e32062f9ec04be4b4ab36b7029b7702b06f8ab22dc96bac7290a8 [2023-11-21 21:02:15,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:15,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:15,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:15,639 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:15,640 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:15,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.17.c [2023-11-21 21:02:18,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:18,922 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:18,922 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.17.c [2023-11-21 21:02:18,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/data/02bbad284/b049853ee917470dbdd3fbe45c70bb30/FLAG72c92baaa [2023-11-21 21:02:18,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/data/02bbad284/b049853ee917470dbdd3fbe45c70bb30 [2023-11-21 21:02:18,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:18,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:18,962 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:18,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:18,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:18,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1d5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:18, skipping insertion in model container [2023-11-21 21:02:18,969 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:18" (1/1) ... [2023-11-21 21:02:18,992 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:19,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:19,179 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:19,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:19,213 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:19,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19 WrapperNode [2023-11-21 21:02:19,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:19,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:19,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:19,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:19,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,250 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-21 21:02:19,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:19,252 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:19,252 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:19,253 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:19,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,266 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,273 INFO L187 HeapSplitter]: Split 0 memory accesses to 0 slices as follows [] [2023-11-21 21:02:19,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,287 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:19,288 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:19,288 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:19,288 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:19,289 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (1/1) ... [2023-11-21 21:02:19,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:19,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:19,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:19,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:19,457 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:19,460 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:19,540 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:19,567 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:19,568 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 21:02:19,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19 BoogieIcfgContainer [2023-11-21 21:02:19,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:19,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:19,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:19,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:19,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:18" (1/3) ... [2023-11-21 21:02:19,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef3bb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:19, skipping insertion in model container [2023-11-21 21:02:19,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:19" (2/3) ... [2023-11-21 21:02:19,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ef3bb09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:19, skipping insertion in model container [2023-11-21 21:02:19,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19" (3/3) ... [2023-11-21 21:02:19,580 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex2.17.c [2023-11-21 21:02:19,600 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:19,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-21 21:02:19,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:19,657 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=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;@3c2743c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:19,657 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-21 21:02:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:02:19,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:19,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:02:19,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 21:02:19,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:19,675 INFO L85 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2023-11-21 21:02:19,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:19,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158673170] [2023-11-21 21:02:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:19,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:19,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:19,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:19,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158673170] [2023-11-21 21:02:19,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158673170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:19,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:19,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 21:02:19,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137831211] [2023-11-21 21:02:19,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:19,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:19,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:19,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:19,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:19,897 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:02:19,931 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2023-11-21 21:02:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:02:19,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-21 21:02:19,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:02:19,941 INFO L225 Difference]: With dead ends: 11 [2023-11-21 21:02:19,941 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 21:02:19,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:19,948 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 21:02:19,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 21:02:19,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 21:02:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-11-21 21:02:19,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 6 states have (on average 1.5) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-21 21:02:19,983 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 3 [2023-11-21 21:02:19,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:02:19,984 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-21 21:02:19,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-21 21:02:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 21:02:19,985 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:02:19,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 21:02:19,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:02:19,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-21 21:02:19,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:19,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1768657, now seen corresponding path program 1 times [2023-11-21 21:02:19,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:19,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88411531] [2023-11-21 21:02:19,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:19,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:19,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:02:20,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:02:20,017 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:02:20,017 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:02:20,019 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-21 21:02:20,021 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-21 21:02:20,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-21 21:02:20,022 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-21 21:02:20,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:02:20,026 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 21:02:20,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:02:20,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:02:20 BoogieIcfgContainer [2023-11-21 21:02:20,047 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:02:20,048 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:02:20,048 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:02:20,048 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:02:20,049 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:19" (3/4) ... [2023-11-21 21:02:20,050 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 21:02:20,084 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:02:20,084 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:02:20,085 INFO L158 Benchmark]: Toolchain (without parser) took 1126.56ms. Allocated memory is still 130.0MB. Free memory was 98.2MB in the beginning and 51.3MB in the end (delta: 46.8MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:20,085 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:20,086 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.94ms. Allocated memory is still 130.0MB. Free memory was 97.8MB in the beginning and 88.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:02:20,102 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.11ms. Allocated memory is still 130.0MB. Free memory was 88.5MB in the beginning and 87.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:20,102 INFO L158 Benchmark]: Boogie Preprocessor took 35.13ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:20,103 INFO L158 Benchmark]: RCFGBuilder took 282.06ms. Allocated memory is still 130.0MB. Free memory was 85.7MB in the beginning and 76.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:02:20,104 INFO L158 Benchmark]: TraceAbstraction took 474.84ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 53.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 21:02:20,104 INFO L158 Benchmark]: Witness Printer took 36.20ms. Allocated memory is still 130.0MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:02:20,108 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 100.9MB in the beginning and 100.7MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.94ms. Allocated memory is still 130.0MB. Free memory was 97.8MB in the beginning and 88.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.11ms. Allocated memory is still 130.0MB. Free memory was 88.5MB in the beginning and 87.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.13ms. Allocated memory is still 130.0MB. Free memory was 87.2MB in the beginning and 85.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.06ms. Allocated memory is still 130.0MB. Free memory was 85.7MB in the beginning and 76.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 474.84ms. Allocated memory is still 130.0MB. Free memory was 75.6MB in the beginning and 53.0MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 36.20ms. Allocated memory is still 130.0MB. Free memory was 52.6MB in the beginning and 51.3MB in the end (delta: 1.2MB). 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: 27]: integer overflow possible integer overflow possible We found a FailurePath: [L23] int x, y; [L24] x = __VERIFIER_nondet_int() [L25] y = __VERIFIER_nondet_int() [L26] COND TRUE x < 10 VAL [x=0, y=-2147483648] [L27] -y VAL [x=0, y=-2147483648] - UnprovableResult [Line: 27]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 28]: 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 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 1 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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! [2023-11-21 21:02:20,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a37aa303-e0b6-4d20-bf37-e963672ab65d/bin/uautomizer-verify-bycVGegfSx/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)