./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_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_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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_578fefbc-e2f1-4248-bd04-c61d63199e9f/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 195a8bdf5097cf476dea2c8b400f0b21e18552040e9cfb1114ae89996b8bdefa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:02:55,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:02:56,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 22:02:56,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:02:56,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:02:56,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:02:56,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:02:56,085 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:02:56,085 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:02:56,086 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:02:56,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:02:56,087 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:02:56,088 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:02:56,088 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:02:56,088 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:02:56,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:02:56,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:02:56,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:02:56,089 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:02:56,089 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:02:56,089 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:02:56,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:02:56,089 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_578fefbc-e2f1-4248-bd04-c61d63199e9f/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 -> 195a8bdf5097cf476dea2c8b400f0b21e18552040e9cfb1114ae89996b8bdefa [2024-11-13 22:02:56,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:02:56,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:02:56,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:02:56,470 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:02:56,471 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:02:56,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i Unable to find full path for "g++" [2024-11-13 22:02:58,685 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:02:59,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:02:59,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i [2024-11-13 22:02:59,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/84edb98dd/c2ecd2ebc21f40329dca43e2d90658f1/FLAG73a8c1a1b [2024-11-13 22:02:59,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/84edb98dd/c2ecd2ebc21f40329dca43e2d90658f1 [2024-11-13 22:02:59,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:02:59,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:02:59,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:02:59,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:02:59,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:02:59,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:02:59" (1/1) ... [2024-11-13 22:02:59,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11532fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:02:59, skipping insertion in model container [2024-11-13 22:02:59,218 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:02:59" (1/1) ... [2024-11-13 22:02:59,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:03:00,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:03:00,493 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:03:00,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:03:00,811 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:03:00,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00 WrapperNode [2024-11-13 22:03:00,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:03:00,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:03:00,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:03:00,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:03:00,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,867 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-13 22:03:00,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:03:00,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:03:00,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:03:00,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:03:00,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,879 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,887 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,890 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:03:00,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:03:00,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:03:00,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:03:00,896 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:00" (1/1) ... [2024-11-13 22:03:00,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:03:00,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:03:00,949 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:03:00,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:03:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:03:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:03:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:03:00,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:03:00,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:03:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 22:03:01,121 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:03:01,125 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:03:01,338 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 22:03:01,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:03:01,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:03:01,417 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:03:01,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:01 BoogieIcfgContainer [2024-11-13 22:03:01,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:03:01,418 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:03:01,419 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:03:01,433 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:03:01,434 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:01" (1/1) ... [2024-11-13 22:03:01,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:03:01,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:03:01,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:03:01,523 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:03:01,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:03:01,530 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:03:01,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 22:03:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:01,732 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:03:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:01,924 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:03:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:01,976 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:03:02,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:03:02 ImpRootNode [2024-11-13 22:03:02,020 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:03:02,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:03:02,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:03:02,024 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:03:02,025 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:01" (3/4) ... [2024-11-13 22:03:02,028 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:03:02,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:03:02,032 INFO L158 Benchmark]: Toolchain (without parser) took 2822.34ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 116.0MB in the beginning and 352.8MB in the end (delta: -236.9MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-13 22:03:02,035 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:02,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1603.58ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 116.0MB in the beginning and 392.1MB in the end (delta: -276.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 22:03:02,037 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.37ms. Allocated memory is still 427.8MB. Free memory was 392.1MB in the beginning and 389.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:03:02,037 INFO L158 Benchmark]: Boogie Preprocessor took 21.93ms. Allocated memory is still 427.8MB. Free memory was 389.2MB in the beginning and 387.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:02,038 INFO L158 Benchmark]: RCFGBuilder took 523.11ms. Allocated memory is still 427.8MB. Free memory was 387.9MB in the beginning and 371.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:03:02,038 INFO L158 Benchmark]: CodeCheck took 602.25ms. Allocated memory is still 427.8MB. Free memory was 371.4MB in the beginning and 353.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:03:02,039 INFO L158 Benchmark]: Witness Printer took 9.01ms. Allocated memory is still 427.8MB. Free memory was 353.4MB in the beginning and 352.8MB in the end (delta: 603.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:02,043 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] 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 0.52ms. Allocated memory is still 142.6MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1603.58ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 116.0MB in the beginning and 392.1MB in the end (delta: -276.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.37ms. Allocated memory is still 427.8MB. Free memory was 392.1MB in the beginning and 389.2MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.93ms. Allocated memory is still 427.8MB. Free memory was 389.2MB in the beginning and 387.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.11ms. Allocated memory is still 427.8MB. Free memory was 387.9MB in the beginning and 371.4MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 602.25ms. Allocated memory is still 427.8MB. Free memory was 371.4MB in the beginning and 353.4MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 9.01ms. Allocated memory is still 427.8MB. Free memory was 353.4MB in the beginning and 352.8MB in the end (delta: 603.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:03:02,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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_578fefbc-e2f1-4248-bd04-c61d63199e9f/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 195a8bdf5097cf476dea2c8b400f0b21e18552040e9cfb1114ae89996b8bdefa --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:03:05,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:03:05,499 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 22:03:05,540 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:03:05,541 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:03:05,541 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:03:05,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:03:05,542 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:03:05,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:03:05,543 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:03:05,544 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:03:05,544 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:03:05,544 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:03:05,544 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:03:05,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:03:05,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:03:05,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:03:05,545 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:03:05,545 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:03:05,545 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:03:05,546 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:03:05,546 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:03:05,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:03:05,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:03:05,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:03:05,547 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:03:05,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:03:05,547 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:03:05,547 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:03:05,547 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:03:05,548 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_578fefbc-e2f1-4248-bd04-c61d63199e9f/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 -> 195a8bdf5097cf476dea2c8b400f0b21e18552040e9cfb1114ae89996b8bdefa [2024-11-13 22:03:05,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:03:05,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:03:05,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:03:05,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:03:05,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:03:05,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i Unable to find full path for "g++" [2024-11-13 22:03:08,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:03:08,906 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:03:08,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_01_bad.i [2024-11-13 22:03:08,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/5190551c0/ded9a4c0a1dc46a6b356a09d89f2307f/FLAGe85db5d18 [2024-11-13 22:03:08,989 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/data/5190551c0/ded9a4c0a1dc46a6b356a09d89f2307f [2024-11-13 22:03:08,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:03:08,996 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:03:08,999 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:03:09,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:03:09,007 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:03:09,008 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:03:08" (1/1) ... [2024-11-13 22:03:09,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42fb1590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:09, skipping insertion in model container [2024-11-13 22:03:09,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:03:08" (1/1) ... [2024-11-13 22:03:09,096 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:03:10,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:03:10,445 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:03:10,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:03:10,863 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:03:10,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10 WrapperNode [2024-11-13 22:03:10,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:03:10,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:03:10,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:03:10,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:03:10,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,918 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,952 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-11-13 22:03:10,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:03:10,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:03:10,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:03:10,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:03:10,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:10,997 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:11,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:11,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:11,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:03:11,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:03:11,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:03:11,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:03:11,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:03:10" (1/1) ... [2024-11-13 22:03:11,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:03:11,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:03:11,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:03:11,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:03:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 22:03:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 22:03:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:03:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:03:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:03:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:03:11,340 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:03:11,342 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:03:11,531 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-13 22:03:11,531 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:03:11,607 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:03:11,609 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 22:03:11,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:11 BoogieIcfgContainer [2024-11-13 22:03:11,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:03:11,611 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:03:11,611 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:03:11,630 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:03:11,630 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:11" (1/1) ... [2024-11-13 22:03:11,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:03:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:03:11,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 22:03:11,718 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 22:03:11,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 22:03:11,723 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:03:11,724 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:03:11,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:03:11,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:03:11,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:03:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:12,015 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:03:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:12,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:12,210 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 22:03:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 22:03:12,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:03:12,288 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 22:03:12,321 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:03:12 ImpRootNode [2024-11-13 22:03:12,321 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:03:12,322 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:03:12,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:03:12,322 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:03:12,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:03:11" (3/4) ... [2024-11-13 22:03:12,325 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 22:03:12,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:03:12,327 INFO L158 Benchmark]: Toolchain (without parser) took 3331.23ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 35.7MB in the end (delta: 21.1MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2024-11-13 22:03:12,327 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:12,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1865.34ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.2MB in the end (delta: 6.6MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 22:03:12,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.35ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 47.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:12,328 INFO L158 Benchmark]: Boogie Preprocessor took 58.35ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 45.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:12,329 INFO L158 Benchmark]: RCFGBuilder took 595.66ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 29.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 22:03:12,329 INFO L158 Benchmark]: CodeCheck took 710.75ms. Allocated memory is still 83.9MB. Free memory was 29.7MB in the beginning and 35.7MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:03:12,330 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 83.9MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 3.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:03:12,333 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_sub_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] 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 0.49ms. Allocated memory is still 83.9MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1865.34ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.2MB in the end (delta: 6.6MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.35ms. Allocated memory is still 83.9MB. Free memory was 50.2MB in the beginning and 47.5MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.35ms. Allocated memory is still 83.9MB. Free memory was 47.5MB in the beginning and 45.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 595.66ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 29.7MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 710.75ms. Allocated memory is still 83.9MB. Free memory was 29.7MB in the beginning and 35.7MB in the end (delta: -6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 83.9MB. Free memory was 35.7MB in the beginning and 35.7MB in the end (delta: 3.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 22:03:12,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578fefbc-e2f1-4248-bd04-c61d63199e9f/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