./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:05:31,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:05:31,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:05:31,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:05:31,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:05:31,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:05:31,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:05:31,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:05:31,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:05:31,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:05:31,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:05:31,750 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:05:31,751 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:05:31,751 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:05:31,751 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:05:31,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:05:31,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:05:31,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:05:31,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:05:31,751 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:05:31,752 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:05:31,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:05:31,752 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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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 -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2024-12-06 04:05:31,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:05:31,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:05:31,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:05:31,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:05:31,974 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:05:31,975 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-12-06 04:05:34,620 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/f2f321c8b/d6d5d49d772547f782eb45d0b40445ac/FLAG0e8c5bb2b [2024-12-06 04:05:34,964 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:05:34,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-12-06 04:05:34,985 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/f2f321c8b/d6d5d49d772547f782eb45d0b40445ac/FLAG0e8c5bb2b [2024-12-06 04:05:35,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/f2f321c8b/d6d5d49d772547f782eb45d0b40445ac [2024-12-06 04:05:35,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:05:35,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:05:35,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:05:35,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:05:35,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:05:35,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:05:35" (1/1) ... [2024-12-06 04:05:35,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23136ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:35, skipping insertion in model container [2024-12-06 04:05:35,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:05:35" (1/1) ... [2024-12-06 04:05:35,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:05:35,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:05:35,879 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:05:35,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:05:36,052 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:05:36,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36 WrapperNode [2024-12-06 04:05:36,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:05:36,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:05:36,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:05:36,053 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:05:36,058 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,098 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 04:05:36,099 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:05:36,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:05:36,100 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:05:36,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:05:36,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,115 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:05:36,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:05:36,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:05:36,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:05:36,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:05:36,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:05:36,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:05:36,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:05:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:05:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:05:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:05:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:05:36,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:05:36,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:05:36,292 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:05:36,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:05:36,386 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 04:05:36,387 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:05:36,416 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:05:36,417 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:05:36,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:36 BoogieIcfgContainer [2024-12-06 04:05:36,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:05:36,418 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:05:36,418 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:05:36,424 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:05:36,425 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:36" (1/1) ... [2024-12-06 04:05:36,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:05:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:05:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 04:05:36,466 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 04:05:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:05:36,469 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:05:36,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:05:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:36,568 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:05:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:36,650 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:05:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:36,681 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:05:36,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:05:36 ImpRootNode [2024-12-06 04:05:36,703 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:05:36,704 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:05:36,704 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:05:36,704 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:05:36,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:36" (3/4) ... [2024-12-06 04:05:36,707 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:05:36,708 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:05:36,709 INFO L158 Benchmark]: Toolchain (without parser) took 1503.62ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 77.6MB in the end (delta: 36.0MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-12-06 04:05:36,709 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:36,710 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.67ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 53.4MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 04:05:36,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.71ms. Allocated memory is still 142.6MB. Free memory was 53.4MB in the beginning and 112.4MB in the end (delta: -58.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-06 04:05:36,711 INFO L158 Benchmark]: Boogie Preprocessor took 22.56ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:36,711 INFO L158 Benchmark]: RCFGBuilder took 294.37ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 97.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:05:36,711 INFO L158 Benchmark]: CodeCheck took 285.88ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 77.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:05:36,712 INFO L158 Benchmark]: Witness Printer took 3.90ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:36,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_predec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=0, CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_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 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.67ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 53.4MB in the end (delta: 60.0MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.71ms. Allocated memory is still 142.6MB. Free memory was 53.4MB in the beginning and 112.4MB in the end (delta: -58.9MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.56ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.37ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 97.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 285.88ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 77.6MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.90ms. Allocated memory is still 142.6MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:05:36,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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 a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:05:38,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:05:38,872 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 04:05:38,899 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:05:38,900 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:05:38,900 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:05:38,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:05:38,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:05:38,901 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:05:38,902 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:05:38,902 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:05:38,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:05:38,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:05:38,903 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:05:38,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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 -> a0e24365d330bfa255dc5c5f7cb6de53905c5e38bbe4a352cd516bdf8cd8a915 [2024-12-06 04:05:39,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:05:39,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:05:39,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:05:39,174 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:05:39,175 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:05:39,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-12-06 04:05:41,932 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/0cef82f0c/4bd3c157427b4d278fcb3b2bb94a4b43/FLAG5bf452d94 [2024-12-06 04:05:42,248 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:05:42,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_68_bad.i [2024-12-06 04:05:42,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/0cef82f0c/4bd3c157427b4d278fcb3b2bb94a4b43/FLAG5bf452d94 [2024-12-06 04:05:42,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/data/0cef82f0c/4bd3c157427b4d278fcb3b2bb94a4b43 [2024-12-06 04:05:42,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:05:42,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:05:42,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:05:42,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:05:42,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:05:42,306 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:05:42" (1/1) ... [2024-12-06 04:05:42,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5401b45e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:42, skipping insertion in model container [2024-12-06 04:05:42,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:05:42" (1/1) ... [2024-12-06 04:05:42,354 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:05:43,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:05:43,219 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:05:43,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:05:43,455 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:05:43,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43 WrapperNode [2024-12-06 04:05:43,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:05:43,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:05:43,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:05:43,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:05:43,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,505 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2024-12-06 04:05:43,506 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:05:43,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:05:43,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:05:43,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:05:43,513 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,518 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,530 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,534 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:05:43,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:05:43,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:05:43,539 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:05:43,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:05:43,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:05:43,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:05:43,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:05:43,600 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:05:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:05:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:05:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:05:43,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:05:43,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:05:43,730 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:05:43,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:05:43,858 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-06 04:05:43,858 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:05:43,901 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:05:43,902 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:05:43,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:43 BoogieIcfgContainer [2024-12-06 04:05:43,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:05:43,903 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:05:43,903 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:05:43,914 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:05:43,914 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:43" (1/1) ... [2024-12-06 04:05:43,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:05:43,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:05:43,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 04:05:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 04:05:43,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:05:43,973 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:05:43,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:05:43,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:05:43,977 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:05:43,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:05:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:44,154 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:05:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:44,282 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:05:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:05:44,322 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:05:44,324 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:05:44,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:05:44 ImpRootNode [2024-12-06 04:05:44,352 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:05:44,353 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:05:44,353 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:05:44,353 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:05:44,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:05:43" (3/4) ... [2024-12-06 04:05:44,357 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:05:44,358 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:05:44,359 INFO L158 Benchmark]: Toolchain (without parser) took 2060.80ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 54.4MB in the end (delta: 12.3MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-06 04:05:44,359 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:44,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1156.07ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. [2024-12-06 04:05:44,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.77ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:44,360 INFO L158 Benchmark]: Boogie Preprocessor took 31.18ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:44,361 INFO L158 Benchmark]: RCFGBuilder took 363.94ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 42.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:05:44,361 INFO L158 Benchmark]: CodeCheck took 448.99ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 54.4MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:44,362 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:05:44,365 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: 0.4s, 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1549] int CWE191_Integer_Underflow__int_fgets_predec_68_goodG2BData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_predec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_predec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_predec_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_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] [L1585] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_68_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 0.37ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1156.07ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.8MB in the end (delta: 3.8MB). Peak memory consumption was 48.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.77ms. Allocated memory is still 92.3MB. Free memory was 62.8MB in the beginning and 60.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.18ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.94ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 42.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 448.99ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 54.4MB in the end (delta: -12.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:05:44,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6e07969-7aca-4a9f-8471-f9ab73782e9d/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