./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.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_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:25:44,681 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:25:44,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-14 05:25:44,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:25:44,827 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:25:44,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:25:44,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:25:44,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:25:44,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:25:44,881 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:25:44,882 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:25:44,883 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:25:44,883 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:25:44,883 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:25:44,883 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:25:44,883 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:25:44,884 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:25:44,884 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:25:44,885 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:25:44,885 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:25:44,885 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:25:44,885 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:25:44,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:25:44,886 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:25:44,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:25:44,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:25:44,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:44,888 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:25:44,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:25:44,890 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:25:44,890 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:25:44,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:25:44,890 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:25:44,891 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:25:44,891 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:25:44,891 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2024-11-14 05:25:45,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:25:45,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:25:45,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:25:45,302 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:25:45,303 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:25:45,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/loops/terminator_02-1.c Unable to find full path for "g++" [2024-11-14 05:25:47,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:25:48,058 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:25:48,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/sv-benchmarks/c/loops/terminator_02-1.c [2024-11-14 05:25:48,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/data/388f83bb6/e31c980161524db99b2adc23ac9d89b5/FLAG0659f8fcc [2024-11-14 05:25:48,123 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/data/388f83bb6/e31c980161524db99b2adc23ac9d89b5 [2024-11-14 05:25:48,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:25:48,127 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:25:48,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:48,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:25:48,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:25:48,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533e41e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48, skipping insertion in model container [2024-11-14 05:25:48,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,156 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:25:48,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:48,378 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:25:48,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:25:48,413 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:25:48,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48 WrapperNode [2024-11-14 05:25:48,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:25:48,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:48,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:25:48,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:25:48,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,458 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2024-11-14 05:25:48,458 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:25:48,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:25:48,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:25:48,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:25:48,471 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,472 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,488 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,489 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:25:48,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:25:48,494 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:25:48,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:25:48,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (1/1) ... [2024-11-14 05:25:48,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:25:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:25:48,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:25:48,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:25:48,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:25:48,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:25:48,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:25:48,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:25:48,651 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:25:48,653 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:25:48,846 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-14 05:25:48,847 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:25:48,888 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:25:48,888 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:25:48,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:48 BoogieIcfgContainer [2024-11-14 05:25:48,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:25:48,892 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:25:48,892 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:25:48,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:25:48,898 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:25:48" (1/3) ... [2024-11-14 05:25:48,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43305a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:25:48, skipping insertion in model container [2024-11-14 05:25:48,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:25:48" (2/3) ... [2024-11-14 05:25:48,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43305a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:25:48, skipping insertion in model container [2024-11-14 05:25:48,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:48" (3/3) ... [2024-11-14 05:25:48,901 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2024-11-14 05:25:48,921 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:25:48,923 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG terminator_02-1.c that has 1 procedures, 17 locations, 1 initial locations, 1 loop locations, and 6 error locations. [2024-11-14 05:25:48,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:25:49,004 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@486477af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:25:49,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-14 05:25:49,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.8) internal successors, (18), 16 states have internal predecessors, (18), 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) [2024-11-14 05:25:49,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-14 05:25:49,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:25:49,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-14 05:25:49,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-14 05:25:49,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:25:49,023 INFO L85 PathProgramCache]: Analyzing trace with hash 2482872, now seen corresponding path program 1 times [2024-11-14 05:25:49,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:25:49,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43226641] [2024-11-14 05:25:49,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:25:49,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:25:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:25:49,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:25:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:25:49,248 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:25:49,250 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:25:49,252 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-14 05:25:49,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-14 05:25:49,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-14 05:25:49,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-14 05:25:49,255 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-14 05:25:49,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-14 05:25:49,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:25:49,267 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:25:49,290 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:25:49,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:25:49 BoogieIcfgContainer [2024-11-14 05:25:49,298 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:25:49,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:25:49,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:25:49,300 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:25:49,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:25:48" (3/4) ... [2024-11-14 05:25:49,302 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-14 05:25:49,347 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b99e334-88ca-4367-b7e1-258afc518c16/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 05:25:49,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:25:49,349 INFO L158 Benchmark]: Toolchain (without parser) took 1222.01ms. Allocated memory is still 117.4MB. Free memory was 95.5MB in the beginning and 56.1MB in the end (delta: 39.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-14 05:25:49,350 INFO L158 Benchmark]: CDTParser took 0.97ms. Allocated memory is still 142.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:49,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.95ms. Allocated memory is still 117.4MB. Free memory was 95.2MB in the beginning and 84.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:49,351 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.07ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:49,351 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 83.0MB in the end (delta: 574.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:49,352 INFO L158 Benchmark]: RCFGBuilder took 394.96ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 71.1MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:25:49,352 INFO L158 Benchmark]: TraceAbstraction took 405.63ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 57.7MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:25:49,353 INFO L158 Benchmark]: Witness Printer took 47.98ms. Allocated memory is still 117.4MB. Free memory was 57.7MB in the beginning and 56.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:25:49,356 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97ms. Allocated memory is still 142.6MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.95ms. Allocated memory is still 117.4MB. Free memory was 95.2MB in the beginning and 84.9MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.07ms. Allocated memory is still 117.4MB. Free memory was 84.9MB in the beginning and 83.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 117.4MB. Free memory was 83.6MB in the beginning and 83.0MB in the end (delta: 574.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 394.96ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 71.1MB in the end (delta: 11.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 405.63ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 57.7MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 47.98ms. Allocated memory is still 117.4MB. Free memory was 57.7MB in the beginning and 56.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND TRUE x<100 && 100