./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_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_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm --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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:36:14,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:36:14,867 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 16:36:14,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:36:14,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:36:14,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:36:14,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:36:14,893 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:36:14,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:36:14,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:36:14,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:36:14,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:36:14,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:36:14,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:36:14,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:36:14,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:36:14,895 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:36:14,895 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:36:14,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:36:14,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:36:14,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:36:14,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:36:14,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:36:14,896 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:36:14,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:36:14,896 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_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm 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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-13 16:36:15,218 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:36:15,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:36:15,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:36:15,235 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:36:15,236 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:36:15,237 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i Unable to find full path for "g++" [2024-11-13 16:36:17,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:36:17,602 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:36:17,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-13 16:36:17,627 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/671ad2060/f7f4c0d8a39a45d69b4eefe80c5caa5a/FLAGb70bbb03a [2024-11-13 16:36:17,642 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/671ad2060/f7f4c0d8a39a45d69b4eefe80c5caa5a [2024-11-13 16:36:17,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:36:17,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:36:17,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:36:17,648 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:36:17,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:36:17,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:36:17" (1/1) ... [2024-11-13 16:36:17,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2102cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:17, skipping insertion in model container [2024-11-13 16:36:17,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:36:17" (1/1) ... [2024-11-13 16:36:17,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:36:18,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:36:18,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:36:18,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:36:18,780 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:36:18,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18 WrapperNode [2024-11-13 16:36:18,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:36:18,783 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:36:18,783 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:36:18,783 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:36:18,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,827 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 73 [2024-11-13 16:36:18,828 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:36:18,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:36:18,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:36:18,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:36:18,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,843 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,845 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:36:18,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:36:18,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:36:18,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:36:18,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:18" (1/1) ... [2024-11-13 16:36:18,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:36:18,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:36:18,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:36:18,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:36:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:36:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:36:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:36:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:36:18,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:36:18,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:36:19,057 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:36:19,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:36:19,207 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 16:36:19,208 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:36:19,245 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:36:19,245 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:36:19,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:19 BoogieIcfgContainer [2024-11-13 16:36:19,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:36:19,246 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:36:19,247 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:36:19,256 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:36:19,256 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:19" (1/1) ... [2024-11-13 16:36:19,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:36:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:36:19,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 16:36:19,312 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 16:36:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:36:19,317 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:36:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:36:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:19,469 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:36:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:19,680 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:36:19,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:19,729 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:36:19,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:36:19 ImpRootNode [2024-11-13 16:36:19,766 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:36:19,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:36:19,768 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:36:19,768 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:36:19,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:19" (3/4) ... [2024-11-13 16:36:19,771 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:36:19,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:36:19,773 INFO L158 Benchmark]: Toolchain (without parser) took 2126.80ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 90.7MB in the beginning and 320.2MB in the end (delta: -229.5MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2024-11-13 16:36:19,774 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:19,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1134.45ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 82.3MB in the end (delta: 8.5MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2024-11-13 16:36:19,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.35ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.7MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:36:19,775 INFO L158 Benchmark]: Boogie Preprocessor took 21.22ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:19,776 INFO L158 Benchmark]: RCFGBuilder took 395.89ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 63.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:36:19,776 INFO L158 Benchmark]: CodeCheck took 519.74ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 63.8MB in the beginning and 320.8MB in the end (delta: -257.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:19,777 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 352.3MB. Free memory was 320.8MB in the beginning and 320.2MB in the end (delta: 586.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:19,781 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 0.1s 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, 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 - 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 large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_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_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 167.8MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1134.45ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 82.3MB in the end (delta: 8.5MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.35ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 79.7MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.22ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 78.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 395.89ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 63.8MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 519.74ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 63.8MB in the beginning and 320.8MB in the end (delta: -257.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 352.3MB. Free memory was 320.8MB in the beginning and 320.2MB in the end (delta: 586.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:36:19,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/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_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm --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 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:36:22,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:36:22,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 16:36:22,462 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:36:22,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:36:22,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:36:22,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:36:22,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:36:22,464 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:36:22,464 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:36:22,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:36:22,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:36:22,464 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:36:22,464 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:36:22,465 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:36:22,465 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:36:22,465 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:36:22,465 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:36:22,483 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:36:22,483 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:36:22,484 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 16:36:22,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:36:22,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:36:22,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:36:22,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:36:22,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:36:22,485 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 16:36:22,485 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:36:22,485 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 16:36:22,485 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_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm 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 -> 0f4b6cb66f44c03b39cb8a828719dfd55f406239a5a7c804e9d0078ffe53721a [2024-11-13 16:36:22,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:36:22,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:36:22,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:36:22,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:36:22,802 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:36:22,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i Unable to find full path for "g++" [2024-11-13 16:36:24,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:36:25,095 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:36:25,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_53_bad.i [2024-11-13 16:36:25,129 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/101b39a20/98dfc4ed55404a239d2eee99c898e888/FLAG3f158eb04 [2024-11-13 16:36:25,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/data/101b39a20/98dfc4ed55404a239d2eee99c898e888 [2024-11-13 16:36:25,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:36:25,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:36:25,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:36:25,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:36:25,164 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:36:25,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:36:25" (1/1) ... [2024-11-13 16:36:25,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db45b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:25, skipping insertion in model container [2024-11-13 16:36:25,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:36:25" (1/1) ... [2024-11-13 16:36:25,214 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:36:26,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:36:26,093 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:36:26,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:36:26,393 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:36:26,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26 WrapperNode [2024-11-13 16:36:26,394 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:36:26,394 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:36:26,394 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:36:26,395 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:36:26,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,425 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,446 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2024-11-13 16:36:26,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:36:26,447 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:36:26,447 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:36:26,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:36:26,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:36:26,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:36:26,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:36:26,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:36:26,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:36:26" (1/1) ... [2024-11-13 16:36:26,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:36:26,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:36:26,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:36:26,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:36:26,563 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:36:26,564 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:36:26,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 16:36:26,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:36:26,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:36:26,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:36:26,775 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:36:26,777 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:36:26,996 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-13 16:36:26,996 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:36:27,047 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:36:27,047 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:36:27,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:27 BoogieIcfgContainer [2024-11-13 16:36:27,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:36:27,048 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:36:27,048 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:36:27,059 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:36:27,059 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:27" (1/1) ... [2024-11-13 16:36:27,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:36:27,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:36:27,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 16:36:27,123 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 16:36:27,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:36:27,128 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:36:27,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:36:27,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:36:27,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:36:27,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 16:36:27,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:27,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:36:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:27,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:36:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:36:27,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 16:36:27,637 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 16:36:27,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:36:27 ImpRootNode [2024-11-13 16:36:27,672 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:36:27,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:36:27,674 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:36:27,674 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:36:27,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:36:27" (3/4) ... [2024-11-13 16:36:27,678 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:36:27,679 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:36:27,680 INFO L158 Benchmark]: Toolchain (without parser) took 2522.85ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 89.2MB in the beginning and 201.3MB in the end (delta: -112.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-11-13 16:36:27,681 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:27,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1235.21ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 67.5MB in the end (delta: 21.8MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-13 16:36:27,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.94ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 64.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:27,683 INFO L158 Benchmark]: Boogie Preprocessor took 29.27ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 62.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:27,685 INFO L158 Benchmark]: RCFGBuilder took 570.88ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 45.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:36:27,686 INFO L158 Benchmark]: CodeCheck took 623.94ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 45.0MB in the beginning and 201.3MB in the end (delta: -156.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:27,686 INFO L158 Benchmark]: Witness Printer took 5.52ms. Allocated memory is still 243.3MB. Free memory was 201.3MB in the beginning and 201.3MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:36:27,688 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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 - 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 large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_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_postdec_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_53d_badSink(data) [L1587] 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 85.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1235.21ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 67.5MB in the end (delta: 21.8MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.94ms. Allocated memory is still 117.4MB. Free memory was 67.5MB in the beginning and 64.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.27ms. Allocated memory is still 117.4MB. Free memory was 64.4MB in the beginning and 62.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 570.88ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 45.0MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 623.94ms. Allocated memory was 117.4MB in the beginning and 243.3MB in the end (delta: 125.8MB). Free memory was 45.0MB in the beginning and 201.3MB in the end (delta: -156.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.52ms. Allocated memory is still 243.3MB. Free memory was 201.3MB in the beginning and 201.3MB in the end (delta: 35.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 16:36:27,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd1b7cfc-82e7-465f-84c6-b25593bde371/bin/ukojak-verify-EEHR8qb7sm/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