./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_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_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3 --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 aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:42:28,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:42:28,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:42:28,382 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:42:28,383 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:42:28,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:42:28,418 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:42:28,418 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:42:28,419 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:42:28,419 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:42:28,420 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:42:28,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:42:28,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:42:28,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:42:28,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:42:28,422 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:42:28,423 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:42:28,423 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:42:28,423 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:42:28,423 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:42:28,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:42:28,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:42:28,423 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:42:28,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:42:28,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:42:28,424 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:42:28,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:42:28,424 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_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3 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 -> aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 [2024-11-25 04:42:28,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:42:28,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:42:28,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:42:28,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:42:28,724 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:42:28,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-25 04:42:31,747 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/ed27bcb05/52309845addb4e1789a145bff65f7589/FLAG0d89f9a1d [2024-11-25 04:42:32,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:42:32,271 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-25 04:42:32,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/ed27bcb05/52309845addb4e1789a145bff65f7589/FLAG0d89f9a1d [2024-11-25 04:42:32,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/ed27bcb05/52309845addb4e1789a145bff65f7589 [2024-11-25 04:42:32,332 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:42:32,334 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:42:32,335 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:42:32,336 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:42:32,347 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:42:32,348 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:32" (1/1) ... [2024-11-25 04:42:32,349 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb598f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:32, skipping insertion in model container [2024-11-25 04:42:32,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:32" (1/1) ... [2024-11-25 04:42:32,420 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:42:33,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:42:33,478 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:42:33,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:42:33,719 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:42:33,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33 WrapperNode [2024-11-25 04:42:33,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:42:33,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:42:33,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:42:33,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:42:33,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,765 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-11-25 04:42:33,766 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:42:33,766 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:42:33,767 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:42:33,767 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:42:33,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,782 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,785 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,787 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:42:33,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:42:33,791 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:42:33,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:42:33,792 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:33" (1/1) ... [2024-11-25 04:42:33,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:42:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:42:33,831 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:42:33,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:42:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:42:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:42:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:42:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:42:33,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:42:33,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:42:34,031 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:42:34,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:42:34,139 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-25 04:42:34,139 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:42:34,181 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:42:34,181 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:42:34,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:34 BoogieIcfgContainer [2024-11-25 04:42:34,182 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:42:34,183 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:42:34,183 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:42:34,193 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:42:34,193 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:34" (1/1) ... [2024-11-25 04:42:34,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:42:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:42:34,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:42:34,261 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:42:34,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:42:34,265 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:42:34,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:42:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:34,399 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:42:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:34,492 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:42:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:34,530 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:42:34,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:42:34 ImpRootNode [2024-11-25 04:42:34,564 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:42:34,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:42:34,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:42:34,565 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:42:34,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:34" (3/4) ... [2024-11-25 04:42:34,568 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:42:34,569 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:42:34,570 INFO L158 Benchmark]: Toolchain (without parser) took 2235.82ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 44.6MB in the end (delta: 44.6MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-11-25 04:42:34,570 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:34,571 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1384.38ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.1MB in the end (delta: 8.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-25 04:42:34,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.75ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 78.3MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:42:34,572 INFO L158 Benchmark]: Boogie Preprocessor took 23.36ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.7MB in the end (delta: 577.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:34,572 INFO L158 Benchmark]: RCFGBuilder took 391.47ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.8MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:42:34,572 INFO L158 Benchmark]: CodeCheck took 381.86ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.6MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:42:34,573 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:34,575 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1384.38ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.1MB in the end (delta: 8.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.75ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 78.3MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.36ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.7MB in the end (delta: 577.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.47ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.8MB in the end (delta: 13.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 381.86ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.6MB in the end (delta: 19.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 117.4MB. Free memory is still 44.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:42:34,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/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_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3 --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 aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:42:37,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:42:37,469 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:42:37,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:42:37,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:42:37,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:42:37,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:42:37,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:42:37,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:42:37,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:42:37,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:42:37,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:42:37,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:42:37,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:42:37,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:42:37,511 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:42:37,511 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:42:37,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:42:37,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:42:37,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:42:37,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:42:37,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:42:37,513 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:42:37,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:42:37,513 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:42:37,513 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_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3 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 -> aa0c465b59f4c587ae5977611dd4023807026f1045a3d951e4aaee9485be3c26 [2024-11-25 04:42:37,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:42:37,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:42:37,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:42:37,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:42:37,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:42:37,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-25 04:42:40,877 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/77614d7b7/5a75594f9f4147249f516bbee60f9d26/FLAG75d59fb42 [2024-11-25 04:42:41,228 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:42:41,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_41_bad.i [2024-11-25 04:42:41,267 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/77614d7b7/5a75594f9f4147249f516bbee60f9d26/FLAG75d59fb42 [2024-11-25 04:42:41,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/data/77614d7b7/5a75594f9f4147249f516bbee60f9d26 [2024-11-25 04:42:41,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:42:41,296 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:42:41,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:42:41,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:42:41,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:42:41,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:41" (1/1) ... [2024-11-25 04:42:41,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24889828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:41, skipping insertion in model container [2024-11-25 04:42:41,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:42:41" (1/1) ... [2024-11-25 04:42:41,356 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:42:42,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:42:42,414 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:42:42,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:42:42,762 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:42:42,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42 WrapperNode [2024-11-25 04:42:42,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:42:42,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:42:42,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:42:42,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:42:42,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,845 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2024-11-25 04:42:42,846 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:42:42,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:42:42,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:42:42,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:42:42,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,873 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,884 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,889 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,892 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:42:42,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:42:42,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:42:42,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:42:42,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:42:42" (1/1) ... [2024-11-25 04:42:42,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:42:42,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:42:42,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:42:42,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:42:42,975 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:42:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:42:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:42:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:42:42,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:42:42,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:42:43,167 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:42:43,169 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:42:43,321 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 04:42:43,322 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:42:43,396 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:42:43,398 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:42:43,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:43 BoogieIcfgContainer [2024-11-25 04:42:43,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:42:43,400 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:42:43,400 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:42:43,420 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:42:43,420 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:43" (1/1) ... [2024-11-25 04:42:43,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:42:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:42:43,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:42:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:42:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:42:43,494 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:42:43,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:42:43,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:42:43,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:42:43,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:42:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:43,708 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:42:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:43,863 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:42:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:42:43,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:42:43,924 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:42:43,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:42:43 ImpRootNode [2024-11-25 04:42:43,962 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:42:43,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:42:43,963 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:42:43,963 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:42:43,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:42:43" (3/4) ... [2024-11-25 04:42:43,969 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:42:43,970 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:42:43,972 INFO L158 Benchmark]: Toolchain (without parser) took 2677.28ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 35.3MB in the end (delta: 21.8MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-11-25 04:42:43,974 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:43,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1466.93ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.3MB in the end (delta: 6.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-25 04:42:43,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.20ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:43,976 INFO L158 Benchmark]: Boogie Preprocessor took 45.04ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 46.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:43,978 INFO L158 Benchmark]: RCFGBuilder took 502.03ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 29.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:42:43,978 INFO L158 Benchmark]: CodeCheck took 562.76ms. Allocated memory is still 83.9MB. Free memory was 29.5MB in the beginning and 35.3MB in the end (delta: -5.8MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2024-11-25 04:42:43,979 INFO L158 Benchmark]: Witness Printer took 7.73ms. Allocated memory is still 83.9MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:42:43,981 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1551] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1466.93ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.3MB in the end (delta: 6.5MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.20ms. Allocated memory is still 83.9MB. Free memory was 50.3MB in the beginning and 47.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.04ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 46.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 502.03ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 29.9MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 562.76ms. Allocated memory is still 83.9MB. Free memory was 29.5MB in the beginning and 35.3MB in the end (delta: -5.8MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 7.73ms. Allocated memory is still 83.9MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:42:44,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cbd713d-edb5-4ba4-a77f-72352ea2affc/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample