./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:00:26,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:00:26,381 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 22:00:26,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:00:26,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:00:26,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:00:26,407 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:00:26,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:00:26,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:00:26,407 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:00:26,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:00:26,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:00:26,409 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:00:26,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:00:26,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:00:26,409 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:00:26,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:00:26,410 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_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-12-05 22:00:26,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:00:26,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:00:26,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:00:26,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:00:26,645 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:00:26,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-12-05 22:00:29,264 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/f34439561/68a59ceae0d84cd1ad6e56e3e253d58e/FLAG74f08c3f4 [2024-12-05 22:00:29,566 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:00:29,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-12-05 22:00:29,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/f34439561/68a59ceae0d84cd1ad6e56e3e253d58e/FLAG74f08c3f4 [2024-12-05 22:00:29,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/f34439561/68a59ceae0d84cd1ad6e56e3e253d58e [2024-12-05 22:00:29,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:00:29,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:00:29,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:00:29,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:00:29,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:00:29,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:29" (1/1) ... [2024-12-05 22:00:29,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fea14cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:29, skipping insertion in model container [2024-12-05 22:00:29,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:29" (1/1) ... [2024-12-05 22:00:29,904 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:00:30,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:00:30,581 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:00:30,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:00:30,763 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:00:30,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30 WrapperNode [2024-12-05 22:00:30,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:00:30,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:00:30,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:00:30,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:00:30,772 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,789 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,805 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-12-05 22:00:30,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:00:30,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:00:30,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:00:30,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:00:30,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,815 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,815 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,819 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,824 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:00:30,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:00:30,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:00:30,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:00:30,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:30" (1/1) ... [2024-12-05 22:00:30,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:00:30,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:00:30,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:00:30,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:00:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:00:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:00:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:00:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:00:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:00:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:00:30,977 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:00:30,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:00:31,065 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 22:00:31,066 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:00:31,092 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:00:31,092 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:00:31,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:31 BoogieIcfgContainer [2024-12-05 22:00:31,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:00:31,094 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:00:31,094 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:00:31,102 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:00:31,102 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:31" (1/1) ... [2024-12-05 22:00:31,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:00:31,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:00:31,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 22:00:31,157 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 22:00:31,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:00:31,161 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:00:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:00:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:31,272 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:00:31,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:31,353 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:00:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:31,382 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:00:31,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:00:31 ImpRootNode [2024-12-05 22:00:31,404 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:00:31,405 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:00:31,405 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:00:31,405 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:00:31,405 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:31" (3/4) ... [2024-12-05 22:00:31,407 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:00:31,408 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:00:31,409 INFO L158 Benchmark]: Toolchain (without parser) took 1552.56ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 43.8MB in the end (delta: 45.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-12-05 22:00:31,409 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.6MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:31,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 907.27ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.9MB in the end (delta: 8.1MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-12-05 22:00:31,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.21ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 78.5MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:00:31,410 INFO L158 Benchmark]: Boogie Preprocessor took 17.72ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:31,411 INFO L158 Benchmark]: RCFGBuilder took 268.74ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 63.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:00:31,411 INFO L158 Benchmark]: CodeCheck took 310.43ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 44.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:00:31,412 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 117.4MB. Free memory was 44.3MB in the beginning and 43.8MB in the end (delta: 528.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:31,414 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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 0.28ms. Allocated memory is still 117.4MB. Free memory was 72.6MB in the beginning and 72.6MB in the end (delta: 84.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 907.27ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 80.9MB in the end (delta: 8.1MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.21ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 78.5MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.72ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 268.74ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 63.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 310.43ms. Allocated memory is still 117.4MB. Free memory was 63.4MB in the beginning and 44.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 117.4MB. Free memory was 44.3MB in the beginning and 43.8MB in the end (delta: 528.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:00:31,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:00:33,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:00:33,430 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 22:00:33,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:00:33,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:00:33,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:00:33,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:00:33,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:00:33,459 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:00:33,459 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:00:33,460 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:00:33,460 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 22:00:33,461 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:00:33,461 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:00:33,461 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 22:00:33,461 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_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-12-05 22:00:33,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:00:33,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:00:33,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:00:33,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:00:33,718 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:00:33,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-12-05 22:00:36,416 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/c017a8151/73fd67380c0e4c48b9cc0f9cfb105032/FLAG888dc81fa [2024-12-05 22:00:36,706 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:00:36,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-12-05 22:00:36,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/c017a8151/73fd67380c0e4c48b9cc0f9cfb105032/FLAG888dc81fa [2024-12-05 22:00:36,743 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/data/c017a8151/73fd67380c0e4c48b9cc0f9cfb105032 [2024-12-05 22:00:36,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:00:36,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:00:36,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:00:36,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:00:36,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:00:36,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:36" (1/1) ... [2024-12-05 22:00:36,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b976ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:36, skipping insertion in model container [2024-12-05 22:00:36,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:00:36" (1/1) ... [2024-12-05 22:00:36,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:00:37,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:00:37,465 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:00:37,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:00:37,654 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:00:37,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37 WrapperNode [2024-12-05 22:00:37,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:00:37,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:00:37,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:00:37,656 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:00:37,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,679 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,698 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-05 22:00:37,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:00:37,699 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:00:37,699 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:00:37,699 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:00:37,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,709 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,709 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,716 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,723 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:00:37,724 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:00:37,724 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:00:37,724 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:00:37,725 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:00:37" (1/1) ... [2024-12-05 22:00:37,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:00:37,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:00:37,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:00:37,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:00:37,781 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:00:37,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 22:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:00:37,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:00:37,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:00:37,907 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:00:37,909 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:00:38,024 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-05 22:00:38,024 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:00:38,059 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:00:38,060 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:00:38,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:38 BoogieIcfgContainer [2024-12-05 22:00:38,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:00:38,061 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:00:38,061 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:00:38,070 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:00:38,070 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:38" (1/1) ... [2024-12-05 22:00:38,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:00:38,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:00:38,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 22:00:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 22:00:38,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:00:38,120 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:00:38,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 22:00:38,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 22:00:38,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 22:00:38,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 22:00:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:38,285 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:00:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:38,382 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:00:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:00:38,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 22:00:38,415 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:00:38,438 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:00:38 ImpRootNode [2024-12-05 22:00:38,438 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:00:38,439 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:00:38,439 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:00:38,439 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:00:38,440 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:00:38" (3/4) ... [2024-12-05 22:00:38,442 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:00:38,442 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:00:38,443 INFO L158 Benchmark]: Toolchain (without parser) took 1696.99ms. Allocated memory was 92.3MB in the beginning and 159.4MB in the end (delta: 67.1MB). Free memory was 66.6MB in the beginning and 118.6MB in the end (delta: -52.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-12-05 22:00:38,444 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:38,444 INFO L158 Benchmark]: CACSL2BoogieTranslator took 907.00ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.5MB in the end (delta: 5.9MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-12-05 22:00:38,445 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.47ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:38,445 INFO L158 Benchmark]: Boogie Preprocessor took 24.24ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:38,445 INFO L158 Benchmark]: RCFGBuilder took 336.22ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 39.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:00:38,446 INFO L158 Benchmark]: CodeCheck took 377.81ms. Allocated memory was 92.3MB in the beginning and 159.4MB in the end (delta: 67.1MB). Free memory was 39.4MB in the beginning and 119.1MB in the end (delta: -79.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:38,446 INFO L158 Benchmark]: Witness Printer took 3.44ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 118.6MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:00:38,448 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 907.00ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 60.5MB in the end (delta: 5.9MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.47ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.24ms. Allocated memory is still 92.3MB. Free memory was 57.8MB in the beginning and 56.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.22ms. Allocated memory is still 92.3MB. Free memory was 56.1MB in the beginning and 39.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 377.81ms. Allocated memory was 92.3MB in the beginning and 159.4MB in the end (delta: 67.1MB). Free memory was 39.4MB in the beginning and 119.1MB in the end (delta: -79.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.44ms. Allocated memory is still 159.4MB. Free memory was 118.6MB in the beginning and 118.6MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:00:38,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd433400-5eab-4206-8cd9-86ea7edef587/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample