./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:46:49,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:46:49,796 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 03:46:49,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:46:49,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:46:49,859 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:46:49,862 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:46:49,862 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:46:49,863 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:46:49,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:46:49,864 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:46:49,865 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:46:49,865 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:46:49,865 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:46:49,865 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:46:49,865 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:46:49,865 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:46:49,866 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:46:49,866 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:46:49,866 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:46:49,867 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:46:49,867 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:46:49,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:46:49,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:46:49,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:46:49,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:46:49,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:46:49,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:46:49,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:46:49,869 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:46:49,870 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:46:49,870 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:46:49,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:46:49,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:46:49,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:46:49,870 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:46:49,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:49,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:46:49,872 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:46:49,873 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:46:49,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:46:49,873 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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-14 03:46:50,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:46:50,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:46:50,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:46:50,296 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:46:50,296 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:46:50,298 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-14 03:46:52,616 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:46:53,068 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:46:53,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-14 03:46:53,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/2e005ecef/9c116679939845399cdd91646acab0a3/FLAGedfa9178e [2024-11-14 03:46:53,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/2e005ecef/9c116679939845399cdd91646acab0a3 [2024-11-14 03:46:53,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:46:53,219 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:46:53,222 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:53,223 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:46:53,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:46:53,230 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:53" (1/1) ... [2024-11-14 03:46:53,231 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58026b8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:53, skipping insertion in model container [2024-11-14 03:46:53,233 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:46:53" (1/1) ... [2024-11-14 03:46:53,314 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:46:54,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:54,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:46:54,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:46:54,886 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:46:54,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54 WrapperNode [2024-11-14 03:46:54,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:46:54,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:46:54,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:46:54,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:46:54,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,946 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2024-11-14 03:46:54,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:46:54,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:46:54,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:46:54,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:46:54,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:46:54,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:46:54,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:46:54,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:46:54,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (1/1) ... [2024-11-14 03:46:54,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:55,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:46:55,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:46:55,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:46:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:46:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:46:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:46:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:46:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:46:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:46:55,247 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:46:55,250 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:46:55,448 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-14 03:46:55,449 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:46:55,529 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:46:55,530 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:46:55,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:46:55 BoogieIcfgContainer [2024-11-14 03:46:55,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:46:55,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:46:55,535 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:46:55,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:46:55,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:46:53" (1/3) ... [2024-11-14 03:46:55,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd0dd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:46:55, skipping insertion in model container [2024-11-14 03:46:55,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:46:54" (2/3) ... [2024-11-14 03:46:55,544 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd0dd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:46:55, skipping insertion in model container [2024-11-14 03:46:55,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:46:55" (3/3) ... [2024-11-14 03:46:55,547 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-14 03:46:55,565 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:46:55,567 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:46:55,636 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:46:55,657 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;@5dfcfd81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:46:55,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:46:55,663 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 03:46:55,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:46:55,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:55,674 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:46:55,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:46:55,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:55,681 INFO L85 PathProgramCache]: Analyzing trace with hash 336445423, now seen corresponding path program 1 times [2024-11-14 03:46:55,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:55,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596504465] [2024-11-14 03:46:55,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:55,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:46:55,903 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:46:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:46:55,979 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:46:55,981 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:46:55,983 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:46:55,985 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:46:55,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:46:55,992 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:46:56,018 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:46:56,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:46:56 BoogieIcfgContainer [2024-11-14 03:46:56,023 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:46:56,023 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:46:56,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:46:56,024 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:46:56,025 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:46:55" (3/4) ... [2024-11-14 03:46:56,028 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:46:56,030 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:46:56,031 INFO L158 Benchmark]: Toolchain (without parser) took 2812.16ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 44.8MB in the end (delta: 44.0MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-14 03:46:56,031 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:46:56,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1665.47ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 79.8MB in the end (delta: 9.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-14 03:46:56,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.83ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:46:56,033 INFO L158 Benchmark]: Boogie Preprocessor took 29.90ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.1MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:46:56,033 INFO L158 Benchmark]: RCFGBuilder took 553.13ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 61.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:46:56,034 INFO L158 Benchmark]: TraceAbstraction took 488.90ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 44.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:46:56,034 INFO L158 Benchmark]: Witness Printer took 6.39ms. Allocated memory is still 117.4MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:46:56,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 83.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1665.47ms. Allocated memory is still 117.4MB. Free memory was 88.8MB in the beginning and 79.8MB in the end (delta: 9.1MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.83ms. Allocated memory is still 117.4MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.90ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 76.1MB in the end (delta: 720.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 553.13ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 61.6MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 488.90ms. Allocated memory is still 117.4MB. Free memory was 61.6MB in the beginning and 44.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.39ms. Allocated memory is still 117.4MB. Free memory is still 44.8MB. 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 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: 1582]: 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 03:46:56,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:46:59,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:46:59,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 03:46:59,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:46:59,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:46:59,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:46:59,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:46:59,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:46:59,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:46:59,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:46:59,645 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:46:59,645 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:46:59,645 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:46:59,646 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:46:59,646 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:46:59,646 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:46:59,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:46:59,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:46:59,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:46:59,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:46:59,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:46:59,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:46:59,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:46:59,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:46:59,649 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:46:59,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:46:59,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:46:59,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:46:59,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:46:59,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:46:59,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:46:59,652 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_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-14 03:47:00,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:47:00,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:47:00,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:47:00,048 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:47:00,049 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:47:00,050 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-14 03:47:02,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:47:02,859 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:47:02,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-14 03:47:02,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/13f9eefec/dd5e7eae7a504483b540eca71abba6bf/FLAG4417abf1e [2024-11-14 03:47:02,926 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/data/13f9eefec/dd5e7eae7a504483b540eca71abba6bf [2024-11-14 03:47:02,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:47:02,930 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:47:02,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:47:02,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:47:02,938 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:47:02,939 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:47:02" (1/1) ... [2024-11-14 03:47:02,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4841c4b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:02, skipping insertion in model container [2024-11-14 03:47:02,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:47:02" (1/1) ... [2024-11-14 03:47:02,997 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:47:04,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:47:04,208 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:47:04,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:47:04,599 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:47:04,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04 WrapperNode [2024-11-14 03:47:04,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:47:04,600 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:47:04,600 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:47:04,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:47:04,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,668 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 67 [2024-11-14 03:47:04,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:47:04,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:47:04,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:47:04,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:47:04,685 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:47:04,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:47:04,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:47:04,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:47:04,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:47:04,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:04,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:47:04,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:47:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:47:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:47:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:47:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:47:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:47:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:47:05,020 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:47:05,022 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:47:05,249 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-14 03:47:05,249 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:47:05,265 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:47:05,265 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:47:05,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:47:05 BoogieIcfgContainer [2024-11-14 03:47:05,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:47:05,269 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:47:05,270 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:47:05,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:47:05,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:47:02" (1/3) ... [2024-11-14 03:47:05,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681d6b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:47:05, skipping insertion in model container [2024-11-14 03:47:05,281 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:04" (2/3) ... [2024-11-14 03:47:05,282 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681d6b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:47:05, skipping insertion in model container [2024-11-14 03:47:05,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:47:05" (3/3) ... [2024-11-14 03:47:05,284 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-14 03:47:05,304 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:47:05,307 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:47:05,393 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:47:05,415 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;@4b5644c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:47:05,415 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:47:05,421 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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 03:47:05,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 03:47:05,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:05,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:47:05,433 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:47:05,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2024-11-14 03:47:05,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:47:05,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103947407] [2024-11-14 03:47:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:05,459 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 03:47:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:47:05,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 03:47:05,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 03:47:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:47:05,690 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:47:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:47:05,775 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:47:05,777 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:47:05,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:47:05,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:47:05,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 03:47:05,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 03:47:05,989 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:47:06,023 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:47:06,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:47:06 BoogieIcfgContainer [2024-11-14 03:47:06,030 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:47:06,031 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:47:06,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:47:06,033 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:47:06,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:47:05" (3/4) ... [2024-11-14 03:47:06,038 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:47:06,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:47:06,040 INFO L158 Benchmark]: Toolchain (without parser) took 3110.22ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 38.4MB in the end (delta: 18.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-14 03:47:06,044 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:47:06,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1668.06ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 50.8MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-14 03:47:06,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.42ms. Allocated memory is still 83.9MB. Free memory was 50.8MB in the beginning and 48.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:47:06,045 INFO L158 Benchmark]: Boogie Preprocessor took 35.07ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 46.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:47:06,046 INFO L158 Benchmark]: RCFGBuilder took 556.97ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 32.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:47:06,046 INFO L158 Benchmark]: TraceAbstraction took 760.78ms. Allocated memory is still 83.9MB. Free memory was 32.3MB in the beginning and 38.9MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:47:06,047 INFO L158 Benchmark]: Witness Printer took 8.03ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 38.4MB in the end (delta: 424.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:47:06,049 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1668.06ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 50.8MB in the end (delta: 6.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.42ms. Allocated memory is still 83.9MB. Free memory was 50.8MB in the beginning and 48.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.07ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 46.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 556.97ms. Allocated memory is still 83.9MB. Free memory was 46.2MB in the beginning and 32.7MB in the end (delta: 13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 760.78ms. Allocated memory is still 83.9MB. Free memory was 32.3MB in the beginning and 38.9MB in the end (delta: -6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.03ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 38.4MB in the end (delta: 424.8kB). 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 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: 1582]: 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, 25 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=25occurred 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 03:47:06,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c05c7e15-8d86-40c8-8ee6-4c476f14b0ba/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample