./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_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_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 bdb3f1d928f38d633659ac00e7313dc56276d592e1902c594e25eae6faa15a05 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:10:16,119 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:10:16,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 04:10:16,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:10:16,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:10:16,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:10:16,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:10:16,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:10:16,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:10:16,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:10:16,288 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:10:16,288 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:10:16,290 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:10:16,290 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:10:16,291 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:10:16,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:10:16,292 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:10:16,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:10:16,293 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:10:16,293 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:10:16,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:10:16,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:10:16,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:10:16,294 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:10:16,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:10:16,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:10:16,294 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:10:16,294 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:10:16,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:10:16,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:10:16,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:16,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:10:16,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:10:16,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:10:16,296 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:10:16,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:10:16,297 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:10:16,297 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:10:16,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:10:16,297 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_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 -> bdb3f1d928f38d633659ac00e7313dc56276d592e1902c594e25eae6faa15a05 [2024-11-14 04:10:16,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:10:16,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:10:16,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:10:16,723 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:10:16,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:10:16,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i Unable to find full path for "g++" [2024-11-14 04:10:18,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:10:19,442 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:10:19,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i [2024-11-14 04:10:19,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/15544b374/b38c9a5d4e734851a42caa030a9fff2a/FLAGdf4158fe1 [2024-11-14 04:10:19,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/15544b374/b38c9a5d4e734851a42caa030a9fff2a [2024-11-14 04:10:19,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:10:19,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:10:19,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:19,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:10:19,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:10:19,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:19" (1/1) ... [2024-11-14 04:10:19,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5421e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:19, skipping insertion in model container [2024-11-14 04:10:19,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:19" (1/1) ... [2024-11-14 04:10:19,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:10:20,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:20,979 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:10:21,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:21,303 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:10:21,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21 WrapperNode [2024-11-14 04:10:21,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:21,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:21,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:10:21,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:10:21,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,333 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,365 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-14 04:10:21,365 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:21,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:10:21,366 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:10:21,366 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:10:21,375 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,379 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,387 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,393 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,395 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:10:21,396 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:10:21,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:10:21,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:10:21,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (1/1) ... [2024-11-14 04:10:21,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:21,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:21,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:10:21,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:10:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:10:21,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:10:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:10:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:10:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:10:21,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:10:21,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:10:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:10:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:10:21,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:10:21,650 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:10:21,651 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:10:21,854 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-14 04:10:21,854 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:10:21,921 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:10:21,921 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:10:21,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:21 BoogieIcfgContainer [2024-11-14 04:10:21,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:10:21,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:10:21,924 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:10:21,929 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:10:21,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:10:19" (1/3) ... [2024-11-14 04:10:21,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42648e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:21, skipping insertion in model container [2024-11-14 04:10:21,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:21" (2/3) ... [2024-11-14 04:10:21,931 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42648e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:21, skipping insertion in model container [2024-11-14 04:10:21,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:21" (3/3) ... [2024-11-14 04:10:21,932 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i [2024-11-14 04:10:21,950 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:10:21,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:10:22,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:10:22,039 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;@56a4bcb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:10:22,039 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:10:22,046 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 04:10:22,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 04:10:22,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:22,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:22,055 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:10:22,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:22,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1025860527, now seen corresponding path program 1 times [2024-11-14 04:10:22,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:22,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032502781] [2024-11-14 04:10:22,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:22,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:10:22,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:10:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:10:22,408 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 04:10:22,410 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:10:22,412 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:10:22,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:10:22,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:10:22,425 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:10:22,454 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:10:22,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:10:22 BoogieIcfgContainer [2024-11-14 04:10:22,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:10:22,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:10:22,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:10:22,462 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:10:22,463 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:21" (3/4) ... [2024-11-14 04:10:22,466 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:10:22,467 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:10:22,468 INFO L158 Benchmark]: Toolchain (without parser) took 2966.32ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 40.2MB in the end (delta: 47.3MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-14 04:10:22,469 INFO L158 Benchmark]: CDTParser took 1.61ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:22,469 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1801.09ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 78.8MB in the end (delta: 8.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-14 04:10:22,469 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.84ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:22,470 INFO L158 Benchmark]: Boogie Preprocessor took 29.69ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:22,470 INFO L158 Benchmark]: RCFGBuilder took 525.41ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 59.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:10:22,471 INFO L158 Benchmark]: TraceAbstraction took 537.07ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 40.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:10:22,471 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 117.4MB. Free memory was 40.9MB in the beginning and 40.2MB in the end (delta: 717.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:22,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.61ms. Allocated memory is still 83.9MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1801.09ms. Allocated memory is still 117.4MB. Free memory was 87.5MB in the beginning and 78.8MB in the end (delta: 8.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.84ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.6MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.69ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 75.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 525.41ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 59.9MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 537.07ms. Allocated memory is still 117.4MB. Free memory was 59.9MB in the beginning and 40.9MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 117.4MB. Free memory was 40.9MB in the beginning and 40.2MB in the end (delta: 717.3kB). 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={14:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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: 1580]: 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 04:10:22,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 bdb3f1d928f38d633659ac00e7313dc56276d592e1902c594e25eae6faa15a05 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:10:25,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:10:25,840 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 04:10:25,852 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:10:25,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:10:25,894 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:10:25,895 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:10:25,895 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:10:25,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:10:25,898 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:10:25,899 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:10:25,899 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:10:25,900 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:10:25,900 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:10:25,900 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:10:25,901 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:10:25,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:10:25,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:10:25,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:10:25,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:10:25,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:10:25,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:10:25,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:25,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:10:25,903 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 04:10:25,904 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 04:10:25,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:10:25,904 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:10:25,904 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_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 -> bdb3f1d928f38d633659ac00e7313dc56276d592e1902c594e25eae6faa15a05 [2024-11-14 04:10:26,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:10:26,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:10:26,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:10:26,263 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:10:26,264 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:10:26,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i Unable to find full path for "g++" [2024-11-14 04:10:28,520 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:10:29,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:10:29,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i [2024-11-14 04:10:29,114 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/dc9b0461d/7e3860ecb6e849c79244feb07e8d6b76/FLAGf07d09782 [2024-11-14 04:10:29,143 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/data/dc9b0461d/7e3860ecb6e849c79244feb07e8d6b76 [2024-11-14 04:10:29,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:10:29,148 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:10:29,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:29,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:10:29,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:10:29,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:29" (1/1) ... [2024-11-14 04:10:29,157 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70daba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:29, skipping insertion in model container [2024-11-14 04:10:29,157 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:29" (1/1) ... [2024-11-14 04:10:29,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:10:30,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:30,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:10:30,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:30,407 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:10:30,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30 WrapperNode [2024-11-14 04:10:30,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:30,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:30,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:10:30,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:10:30,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,444 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,473 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-14 04:10:30,474 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:30,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:10:30,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:10:30,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:10:30,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,492 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,501 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,507 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:10:30,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:10:30,512 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:10:30,512 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:10:30,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (1/1) ... [2024-11-14 04:10:30,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:30,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:30,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:10:30,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:10:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 04:10:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 04:10:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 04:10:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 04:10:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:10:30,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:10:30,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:10:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-14 04:10:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 04:10:30,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-14 04:10:30,756 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:10:30,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:10:30,988 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-14 04:10:30,988 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:10:31,006 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:10:31,006 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 04:10:31,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:31 BoogieIcfgContainer [2024-11-14 04:10:31,006 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:10:31,010 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:10:31,010 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:10:31,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:10:31,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:10:29" (1/3) ... [2024-11-14 04:10:31,017 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e963707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:31, skipping insertion in model container [2024-11-14 04:10:31,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:30" (2/3) ... [2024-11-14 04:10:31,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e963707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:31, skipping insertion in model container [2024-11-14 04:10:31,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:31" (3/3) ... [2024-11-14 04:10:31,021 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i [2024-11-14 04:10:31,040 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:10:31,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_66_bad.i that has 2 procedures, 24 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 04:10:31,124 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:10:31,143 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;@6c071241, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:10:31,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 04:10:31,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 04:10:31,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-14 04:10:31,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:31,160 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:31,160 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 04:10:31,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:31,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-14 04:10:31,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 04:10:31,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123572869] [2024-11-14 04:10:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:31,191 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 04:10:31,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 04:10:31,196 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 04:10:31,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 04:10:31,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:10:31,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 04:10:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 04:10:31,683 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 04:10:31,685 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 04:10:31,687 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 04:10:31,690 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 04:10:31,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 04:10:31,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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 04:10:31,895 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 04:10:31,929 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:10:31,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:10:31 BoogieIcfgContainer [2024-11-14 04:10:31,933 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:10:31,934 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:10:31,934 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:10:31,934 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:10:31,935 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:31" (3/4) ... [2024-11-14 04:10:31,937 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 04:10:31,938 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:10:31,939 INFO L158 Benchmark]: Toolchain (without parser) took 2791.42ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 77.8MB in the end (delta: 13.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-14 04:10:31,940 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:31,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1258.34ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 79.5MB in the end (delta: 11.7MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-11-14 04:10:31,940 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.16ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:31,941 INFO L158 Benchmark]: Boogie Preprocessor took 36.64ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:31,941 INFO L158 Benchmark]: RCFGBuilder took 495.03ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 60.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 04:10:31,942 INFO L158 Benchmark]: TraceAbstraction took 923.17ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 78.4MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:31,942 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 78.4MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:31,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1258.34ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 79.5MB in the end (delta: 11.7MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.16ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 76.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.64ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 495.03ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 60.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 923.17ms. Allocated memory is still 117.4MB. Free memory was 59.4MB in the beginning and 78.4MB in the end (delta: -19.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 78.4MB in the end (delta: 19.3kB). 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. 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] [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_postdec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_postdec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] 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: 1580]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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=24occurred 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: 0.1s 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 04:10:31,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7174d803-0a33-4b55-83d3-f8ef40a25a68/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