./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/terminator_03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_03-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd --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 32bit --witnessprinter.graph.data.programhash c6195aac4ed5fd870d8a0e9d86ce21873e1b6b73a142bab52cc3ba137a2f556f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:32:47,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:32:47,702 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:32:47,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:32:47,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:32:47,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:32:47,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:32:47,760 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:32:47,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:32:47,760 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:32:47,761 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:32:47,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:32:47,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:32:47,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:32:47,762 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:32:47,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:32:47,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:32:47,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:32:47,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:32:47,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:32:47,765 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:32:47,765 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:32:47,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:32:47,766 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:32:47,767 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:32:47,767 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:32:47,767 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:32:47,767 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6195aac4ed5fd870d8a0e9d86ce21873e1b6b73a142bab52cc3ba137a2f556f [2024-11-13 13:32:48,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:32:48,188 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:32:48,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:32:48,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:32:48,193 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:32:48,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/loops/terminator_03-1.c Unable to find full path for "g++" [2024-11-13 13:32:50,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:32:50,606 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:32:50,608 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/sv-benchmarks/c/loops/terminator_03-1.c [2024-11-13 13:32:50,618 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/data/63c0449de/a5f5f9c788a64cc3b4e0963871c41e6b/FLAGa52eb2923 [2024-11-13 13:32:50,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/data/63c0449de/a5f5f9c788a64cc3b4e0963871c41e6b [2024-11-13 13:32:50,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:32:50,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:32:50,933 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:32:50,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:32:50,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:32:50,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:50" (1/1) ... [2024-11-13 13:32:50,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77416a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:50, skipping insertion in model container [2024-11-13 13:32:50,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:50" (1/1) ... [2024-11-13 13:32:50,957 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:32:51,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:32:51,151 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:32:51,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:32:51,183 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:32:51,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51 WrapperNode [2024-11-13 13:32:51,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:32:51,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:32:51,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:32:51,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:32:51,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,201 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,221 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 34 [2024-11-13 13:32:51,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:32:51,222 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:32:51,222 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:32:51,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:32:51,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,237 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,260 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:32:51,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,261 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,263 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,269 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,270 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,271 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:32:51,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:32:51,274 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:32:51,274 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:32:51,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (1/1) ... [2024-11-13 13:32:51,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:32:51,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:32:51,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:32:51,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:32:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:32:51,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:32:51,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:32:51,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:32:51,451 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:32:51,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:32:51,624 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-13 13:32:51,624 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:32:51,645 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:32:51,646 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:32:51,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:51 BoogieIcfgContainer [2024-11-13 13:32:51,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:32:51,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:32:51,653 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:32:51,660 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:32:51,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:32:50" (1/3) ... [2024-11-13 13:32:51,661 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20ce44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:32:51, skipping insertion in model container [2024-11-13 13:32:51,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:51" (2/3) ... [2024-11-13 13:32:51,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20ce44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:32:51, skipping insertion in model container [2024-11-13 13:32:51,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:51" (3/3) ... [2024-11-13 13:32:51,665 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03-1.c [2024-11-13 13:32:51,686 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:32:51,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG terminator_03-1.c that has 1 procedures, 16 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 13:32:51,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:32:51,790 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6900f36d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:32:51,791 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:32:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 13:32:51,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:51,806 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 13:32:51,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 13:32:51,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash 28693955, now seen corresponding path program 1 times [2024-11-13 13:32:51,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:51,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644273845] [2024-11-13 13:32:51,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:51,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:52,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:32:52,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:32:52,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644273845] [2024-11-13 13:32:52,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644273845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:32:52,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:32:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:32:52,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431861165] [2024-11-13 13:32:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:52,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:32:52,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:32:52,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:32:52,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:32:52,130 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:52,290 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2024-11-13 13:32:52,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:32:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 13:32:52,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:52,300 INFO L225 Difference]: With dead ends: 31 [2024-11-13 13:32:52,300 INFO L226 Difference]: Without dead ends: 14 [2024-11-13 13:32:52,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:32:52,307 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:52,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 19 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 13:32:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2024-11-13 13:32:52,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 10. [2024-11-13 13:32:52,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:52,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-13 13:32:52,355 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2024-11-13 13:32:52,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:52,356 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-13 13:32:52,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:32:52,357 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-13 13:32:52,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 13:32:52,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:52,359 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 13:32:52,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:32:52,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 13:32:52,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:52,361 INFO L85 PathProgramCache]: Analyzing trace with hash 889512652, now seen corresponding path program 1 times [2024-11-13 13:32:52,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:32:52,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75065215] [2024-11-13 13:32:52,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:52,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:32:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:32:52,392 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:32:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:32:52,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:32:52,433 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:32:52,435 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 13:32:52,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 13:32:52,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:32:52,442 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 13:32:52,460 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:32:52,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:32:52 BoogieIcfgContainer [2024-11-13 13:32:52,465 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:32:52,470 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:32:52,470 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:32:52,470 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:32:52,471 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:32:51" (3/4) ... [2024-11-13 13:32:52,472 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:32:52,521 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:32:52,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:32:52,522 INFO L158 Benchmark]: Toolchain (without parser) took 1590.44ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 44.5MB in the end (delta: 47.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 13:32:52,524 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:52,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.76ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:32:52,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.60ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:52,527 INFO L158 Benchmark]: Boogie Preprocessor took 51.12ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 917.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:32:52,528 INFO L158 Benchmark]: RCFGBuilder took 373.00ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 70.0MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:32:52,529 INFO L158 Benchmark]: TraceAbstraction took 813.10ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 46.8MB in the end (delta: 22.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:32:52,529 INFO L158 Benchmark]: Witness Printer took 50.90ms. Allocated memory is still 117.4MB. Free memory was 46.8MB in the beginning and 44.5MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:32:52,531 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 83.9MB. Free memory is still 40.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.76ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 81.7MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.60ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 80.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.12ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.5MB in the end (delta: 917.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 373.00ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 70.0MB in the end (delta: 9.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 813.10ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 46.8MB in the end (delta: 22.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 50.90ms. Allocated memory is still 117.4MB. Free memory was 46.8MB in the beginning and 44.5MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. 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: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int x=__VERIFIER_nondet_int(); [L16] int y=__VERIFIER_nondet_int(); [L18] COND TRUE y>0 VAL [x=1, y=2147483647] [L20] COND TRUE x<100 VAL [x=1, y=2147483647] [L22] x+y - UnprovableResult [Line: 22]: 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, 16 locations, 2 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, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 27 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 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! [2024-11-13 13:32:52,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_061939b8-cd57-4835-87b1-6cfacb06ac21/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)