./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:03:14,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:03:14,956 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 03:03:14,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:03:14,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:03:14,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:03:14,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:03:14,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:03:14,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:03:14,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:03:14,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:03:14,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:03:14,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:03:14,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:03:14,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:03:14,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:03:14,983 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:03:14,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:03:14,983 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_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b 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 -> Kojak 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 -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-12-06 03:03:15,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:03:15,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:03:15,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:03:15,204 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:03:15,205 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:03:15,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-12-06 03:03:17,813 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/f79b28156/9e388aab6b99437d9c0adc38d14d8c71/FLAG8dc3644cb [2024-12-06 03:03:18,139 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:03:18,139 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-12-06 03:03:18,161 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/f79b28156/9e388aab6b99437d9c0adc38d14d8c71/FLAG8dc3644cb [2024-12-06 03:03:18,408 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/f79b28156/9e388aab6b99437d9c0adc38d14d8c71 [2024-12-06 03:03:18,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:03:18,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:03:18,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:03:18,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:03:18,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:03:18,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:03:18" (1/1) ... [2024-12-06 03:03:18,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec763fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:18, skipping insertion in model container [2024-12-06 03:03:18,418 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:03:18" (1/1) ... [2024-12-06 03:03:18,455 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:03:19,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:03:19,116 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:03:19,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:03:19,278 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:03:19,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19 WrapperNode [2024-12-06 03:03:19,278 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:03:19,279 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:03:19,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:03:19,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:03:19,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,298 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,312 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 64 [2024-12-06 03:03:19,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:03:19,313 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:03:19,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:03:19,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:03:19,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,325 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,326 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,328 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:03:19,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:03:19,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:03:19,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:03:19,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:03:19,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:03:19,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:03:19,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:03:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:03:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:03:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:03:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:03:19,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:03:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:03:19,478 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:03:19,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:03:19,569 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-12-06 03:03:19,569 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:03:19,602 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:03:19,602 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:03:19,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:19 BoogieIcfgContainer [2024-12-06 03:03:19,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:03:19,603 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:03:19,603 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:03:19,610 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:03:19,610 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:19" (1/1) ... [2024-12-06 03:03:19,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:03:19,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:03:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:03:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:03:19,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:03:19,657 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:03:19,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:03:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:19,756 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:03:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:19,835 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:03:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:19,863 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:03:19,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:03:19 ImpRootNode [2024-12-06 03:03:19,887 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:03:19,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:03:19,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:03:19,888 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:03:19,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:19" (3/4) ... [2024-12-06 03:03:19,891 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:03:19,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:03:19,892 INFO L158 Benchmark]: Toolchain (without parser) took 1481.01ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 71.9MB in the end (delta: 40.8MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-12-06 03:03:19,893 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:19,893 INFO L158 Benchmark]: CACSL2BoogieTranslator took 866.36ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 109.5MB in the end (delta: 2.9MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. [2024-12-06 03:03:19,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.10ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 106.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:19,894 INFO L158 Benchmark]: Boogie Preprocessor took 14.94ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:19,894 INFO L158 Benchmark]: RCFGBuilder took 274.70ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 91.1MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:03:19,895 INFO L158 Benchmark]: CodeCheck took 283.57ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 72.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:03:19,895 INFO L158 Benchmark]: Witness Printer took 4.07ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 71.9MB in the end (delta: 605.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:19,897 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1587]: 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 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_53_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_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 866.36ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 109.5MB in the end (delta: 2.9MB). Peak memory consumption was 74.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.10ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 106.5MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.94ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 105.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 274.70ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 91.1MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 283.57ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 72.5MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.07ms. Allocated memory is still 142.6MB. Free memory was 72.5MB in the beginning and 71.9MB in the end (delta: 605.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 03:03:19,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:03:21,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:03:21,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 03:03:21,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:03:21,958 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:03:21,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:03:21,958 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:03:21,958 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:03:21,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:03:21,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:03:21,959 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:03:21,960 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 03:03:21,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:03:21,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:03:21,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:03:21,961 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 03:03:21,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:03:21,961 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 03:03:21,961 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_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b 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 -> Kojak 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 -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2024-12-06 03:03:22,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:03:22,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:03:22,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:03:22,205 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:03:22,205 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:03:22,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-12-06 03:03:24,839 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/c68b9e4d8/6c583770f7e947ff9bc6d48ba6269eeb/FLAGf0dbdc049 [2024-12-06 03:03:25,141 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:03:25,141 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2024-12-06 03:03:25,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/c68b9e4d8/6c583770f7e947ff9bc6d48ba6269eeb/FLAGf0dbdc049 [2024-12-06 03:03:25,173 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/data/c68b9e4d8/6c583770f7e947ff9bc6d48ba6269eeb [2024-12-06 03:03:25,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:03:25,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:03:25,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:03:25,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:03:25,181 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:03:25,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:03:25" (1/1) ... [2024-12-06 03:03:25,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6425f92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:25, skipping insertion in model container [2024-12-06 03:03:25,183 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:03:25" (1/1) ... [2024-12-06 03:03:25,216 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:03:25,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:03:25,906 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:03:26,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:03:26,125 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:03:26,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26 WrapperNode [2024-12-06 03:03:26,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:03:26,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:03:26,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:03:26,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:03:26,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,168 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 63 [2024-12-06 03:03:26,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:03:26,169 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:03:26,169 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:03:26,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:03:26,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,185 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,186 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,188 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:03:26,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:03:26,195 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:03:26,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:03:26,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:03:26,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:03:26,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:03:26,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:03:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:03:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:03:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 03:03:26,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:03:26,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:03:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:03:26,365 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:03:26,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:03:26,475 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 03:03:26,475 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:03:26,512 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:03:26,513 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:03:26,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:26 BoogieIcfgContainer [2024-12-06 03:03:26,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:03:26,514 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:03:26,514 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:03:26,521 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:03:26,521 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:26" (1/1) ... [2024-12-06 03:03:26,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:03:26,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:03:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:03:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:03:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:03:26,564 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:03:26,564 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:03:26,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:03:26,566 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:03:26,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 03:03:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:26,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:03:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:26,843 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:03:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:03:26,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 03:03:26,878 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:03:26,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:03:26 ImpRootNode [2024-12-06 03:03:26,902 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:03:26,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:03:26,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:03:26,902 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:03:26,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:03:26" (3/4) ... [2024-12-06 03:03:26,905 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:03:26,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:03:26,907 INFO L158 Benchmark]: Toolchain (without parser) took 1731.05ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 66.2MB in the beginning and 113.1MB in the end (delta: -46.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-12-06 03:03:26,907 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:26,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 948.98ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 62.9MB in the end (delta: 3.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-06 03:03:26,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 60.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:26,908 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 92.3MB. Free memory was 60.2MB in the beginning and 58.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:26,909 INFO L158 Benchmark]: RCFGBuilder took 317.76ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 42.1MB in the end (delta: 16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:03:26,909 INFO L158 Benchmark]: CodeCheck took 388.08ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 42.1MB in the beginning and 113.1MB in the end (delta: -71.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:26,910 INFO L158 Benchmark]: Witness Printer took 4.02ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 113.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:03:26,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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, 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: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1587]: 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 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_53_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_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 948.98ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 62.9MB in the end (delta: 3.1MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 60.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 92.3MB. Free memory was 60.2MB in the beginning and 58.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.76ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 42.1MB in the end (delta: 16.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 388.08ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 42.1MB in the beginning and 113.1MB in the end (delta: -71.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.02ms. Allocated memory is still 151.0MB. Free memory was 113.1MB in the beginning and 113.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 03:03:26,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a016c6a-b55d-455b-92b4-4272fbb23ffa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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