./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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 64bit --witnessprinter.graph.data.programhash 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:59:56,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:59:56,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:59:56,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:59:56,235 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:59:56,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:59:56,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:59:56,285 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:59:56,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:59:56,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:59:56,286 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:59:56,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:59:56,288 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:59:56,289 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:59:56,289 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:59:56,289 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:59:56,289 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:59:56,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:59:56,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:59:56,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:59:56,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:59:56,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:59:56,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:59:56,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:59:56,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:59:56,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:59:56,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:59:56,292 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:59:56,293 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:59:56,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:59:56,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:59:56,294 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:59:56,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:59:56,294 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_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2024-11-14 04:59:56,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:59:56,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:59:56,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:59:56,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:59:56,650 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:59:56,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i Unable to find full path for "g++" [2024-11-14 04:59:58,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:59:59,282 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:59:59,282 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-14 04:59:59,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/21eaaf43d/40db8734c4e44f97994dbe44121b6c01/FLAG76a1e268a [2024-11-14 04:59:59,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/21eaaf43d/40db8734c4e44f97994dbe44121b6c01 [2024-11-14 04:59:59,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:59:59,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:59:59,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:59:59,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:59:59,338 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:59:59,339 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:59:59" (1/1) ... [2024-11-14 04:59:59,340 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff50af4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:59:59, skipping insertion in model container [2024-11-14 04:59:59,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:59:59" (1/1) ... [2024-11-14 04:59:59,394 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:00:00,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:00,481 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:00:00,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:00,773 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:00:00,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00 WrapperNode [2024-11-14 05:00:00,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:00,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:00,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:00:00,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:00:00,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,865 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-14 05:00:00,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:00,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:00:00,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:00:00,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:00:00,881 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,881 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,920 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:00:00,921 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:00:00,921 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:00:00,921 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:00:00,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (1/1) ... [2024-11-14 05:00:00,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:00,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:00:00,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:00:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 05:00:00,985 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 05:00:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:00:00,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:00:00,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:00:00,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:00:01,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:00:01,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:00:01,336 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-14 05:00:01,336 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:00:01,409 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:00:01,411 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:00:01,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:01 BoogieIcfgContainer [2024-11-14 05:00:01,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:00:01,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:00:01,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:00:01,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:00:01,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:59:59" (1/3) ... [2024-11-14 05:00:01,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514eb87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:01, skipping insertion in model container [2024-11-14 05:00:01,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:00" (2/3) ... [2024-11-14 05:00:01,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514eb87e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:01, skipping insertion in model container [2024-11-14 05:00:01,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:01" (3/3) ... [2024-11-14 05:00:01,427 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-14 05:00:01,448 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:00:01,450 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 05:00:01,527 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:00:01,547 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;@3bfd0936, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:00:01,549 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:00:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:00:01,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 05:00:01,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:01,565 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:01,566 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:00:01,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash 781811922, now seen corresponding path program 1 times [2024-11-14 05:00:01,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:00:01,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329065782] [2024-11-14 05:00:01,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:01,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:00:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:01,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:00:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:01,853 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 05:00:01,855 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:00:01,857 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 05:00:01,859 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 05:00:01,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:00:01,863 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:00:01,884 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:00:01,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:00:01 BoogieIcfgContainer [2024-11-14 05:00:01,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:00:01,888 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:00:01,889 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:00:01,889 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:00:01,890 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:01" (3/4) ... [2024-11-14 05:00:01,893 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:00:01,894 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:00:01,895 INFO L158 Benchmark]: Toolchain (without parser) took 2564.98ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 75.8MB in the end (delta: 27.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-14 05:00:01,896 INFO L158 Benchmark]: CDTParser took 2.66ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:01,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1444.81ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 43.0MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-14 05:00:01,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.13ms. Allocated memory is still 142.6MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 05:00:01,897 INFO L158 Benchmark]: Boogie Preprocessor took 50.22ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:01,898 INFO L158 Benchmark]: RCFGBuilder took 490.97ms. Allocated memory is still 142.6MB. Free memory was 39.3MB in the beginning and 93.3MB in the end (delta: -53.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-14 05:00:01,898 INFO L158 Benchmark]: TraceAbstraction took 471.17ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 76.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:00:01,899 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 75.8MB in the end (delta: 682.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:01,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.66ms. Allocated memory is still 167.8MB. Free memory is still 105.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1444.81ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 43.0MB in the end (delta: 59.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.13ms. Allocated memory is still 142.6MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.22ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 490.97ms. Allocated memory is still 142.6MB. Free memory was 39.3MB in the beginning and 93.3MB in the end (delta: -53.9MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 471.17ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 76.5MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 75.8MB in the end (delta: 682.0kB). 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 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:00:01,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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 64bit --witnessprinter.graph.data.programhash 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:00:04,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:00:05,037 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 05:00:05,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:00:05,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:00:05,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:00:05,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:00:05,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:00:05,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:00:05,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:00:05,104 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:00:05,104 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:00:05,105 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:00:05,105 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:00:05,105 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:00:05,105 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:00:05,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:00:05,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 05:00:05,107 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:00:05,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:00:05,108 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 05:00:05,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:00:05,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:00:05,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:05,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:00:05,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:00:05,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:00:05,110 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 05:00:05,111 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 05:00:05,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:00:05,111 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:00:05,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436067b5a7e83a6a102ade1165753822668aa7a7dda33688650a66200c786699 [2024-11-14 05:00:05,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:00:05,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:00:05,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:00:05,528 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:00:05,528 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:00:05,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i Unable to find full path for "g++" [2024-11-14 05:00:07,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:00:08,305 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:00:08,309 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-14 05:00:08,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/98d240b10/ad83b9acf3c34c5383f2fdc3238a2398/FLAGfe55c0435 [2024-11-14 05:00:08,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/data/98d240b10/ad83b9acf3c34c5383f2fdc3238a2398 [2024-11-14 05:00:08,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:00:08,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:00:08,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:08,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:00:08,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:00:08,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:08" (1/1) ... [2024-11-14 05:00:08,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a78fc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:08, skipping insertion in model container [2024-11-14 05:00:08,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:00:08" (1/1) ... [2024-11-14 05:00:08,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:00:09,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:09,805 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:00:09,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:00:10,135 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:00:10,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10 WrapperNode [2024-11-14 05:00:10,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:00:10,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:10,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:00:10,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:00:10,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,200 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-14 05:00:10,200 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:00:10,201 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:00:10,201 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:00:10,201 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:00:10,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,236 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:00:10,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:00:10,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:00:10,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:00:10,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (1/1) ... [2024-11-14 05:00:10,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:00:10,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:00:10,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:00:10,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:00:10,334 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 05:00:10,335 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 05:00:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 05:00:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:00:10,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:00:10,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:00:10,515 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:00:10,517 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:00:10,698 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-14 05:00:10,698 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:00:10,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:00:10,715 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 05:00:10,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:10 BoogieIcfgContainer [2024-11-14 05:00:10,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:00:10,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:00:10,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:00:10,729 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:00:10,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:00:08" (1/3) ... [2024-11-14 05:00:10,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368acb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:10, skipping insertion in model container [2024-11-14 05:00:10,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:00:10" (2/3) ... [2024-11-14 05:00:10,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@368acb03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:00:10, skipping insertion in model container [2024-11-14 05:00:10,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:10" (3/3) ... [2024-11-14 05:00:10,732 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i [2024-11-14 05:00:10,751 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:00:10,754 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_31_bad.i that has 2 procedures, 23 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 05:00:10,816 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:00:10,836 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;@2315c0ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:00:10,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 05:00:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 05:00:10,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 05:00:10,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:00:10,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:00:10,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 05:00:10,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:00:10,855 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-14 05:00:10,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 05:00:10,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324508451] [2024-11-14 05:00:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:00:10,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:10,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 05:00:10,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-14 05:00:10,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-14 05:00:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:11,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 05:00:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 05:00:11,211 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 05:00:11,214 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 05:00:11,217 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 05:00:11,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 05:00:11,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-14 05:00:11,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-14 05:00:11,429 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 05:00:11,455 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 05:00:11,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:00:11 BoogieIcfgContainer [2024-11-14 05:00:11,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 05:00:11,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 05:00:11,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 05:00:11,462 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 05:00:11,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:00:10" (3/4) ... [2024-11-14 05:00:11,467 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 05:00:11,467 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 05:00:11,469 INFO L158 Benchmark]: Toolchain (without parser) took 3082.26ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 89.8MB in the beginning and 217.2MB in the end (delta: -127.4MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-11-14 05:00:11,469 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:11,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1744.85ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 69.5MB in the end (delta: 20.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-14 05:00:11,470 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.18ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 66.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:11,470 INFO L158 Benchmark]: Boogie Preprocessor took 47.75ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:11,471 INFO L158 Benchmark]: RCFGBuilder took 466.14ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 51.3MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 05:00:11,471 INFO L158 Benchmark]: TraceAbstraction took 741.02ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 50.8MB in the beginning and 217.9MB in the end (delta: -167.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-14 05:00:11,471 INFO L158 Benchmark]: Witness Printer took 6.09ms. Allocated memory is still 251.7MB. Free memory was 217.9MB in the beginning and 217.2MB in the end (delta: 694.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 05:00:11,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 117.4MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1744.85ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 69.5MB in the end (delta: 20.2MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.18ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 66.9MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.75ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 65.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.14ms. Allocated memory is still 117.4MB. Free memory was 64.9MB in the beginning and 51.3MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 741.02ms. Allocated memory was 117.4MB in the beginning and 251.7MB in the end (delta: 134.2MB). Free memory was 50.8MB in the beginning and 217.9MB in the end (delta: -167.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Witness Printer took 6.09ms. Allocated memory is still 251.7MB. Free memory was 217.9MB in the beginning and 217.2MB in the end (delta: 694.9kB). 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 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces [2024-11-14 05:00:11,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd588e-c2bd-42c6-9fb6-4ac2bf182450/bin/utaipan-verify-sOmjnqqW8E/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 Result: UNKNOWN: Overapproximated counterexample