./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_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_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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_ba163989-decd-4901-97c6-f0d9d1620e5f/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 a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:24:29,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:24:29,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 03:24:29,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:24:29,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:24:29,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:24:29,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:24:29,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:24:29,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:24:29,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:24:29,809 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:24:29,809 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:24:29,810 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:24:29,811 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:24:29,811 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:24:29,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:24:29,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:24:29,812 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_ba163989-decd-4901-97c6-f0d9d1620e5f/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 -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-12-06 03:24:30,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:24:30,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:24:30,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:24:30,041 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:24:30,041 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:24:30,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-12-06 03:24:32,756 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/8e14f463c/fc45ff998dae4a0395361117387a2e35/FLAG411784e40 [2024-12-06 03:24:33,047 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:24:33,047 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-12-06 03:24:33,064 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/8e14f463c/fc45ff998dae4a0395361117387a2e35/FLAG411784e40 [2024-12-06 03:24:33,321 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/8e14f463c/fc45ff998dae4a0395361117387a2e35 [2024-12-06 03:24:33,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:24:33,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:24:33,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:24:33,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:24:33,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:24:33,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:24:33" (1/1) ... [2024-12-06 03:24:33,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39784fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:33, skipping insertion in model container [2024-12-06 03:24:33,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:24:33" (1/1) ... [2024-12-06 03:24:33,359 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:24:33,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:24:33,937 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:24:34,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:24:34,108 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:24:34,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34 WrapperNode [2024-12-06 03:24:34,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:24:34,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:24:34,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:24:34,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:24:34,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,150 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-12-06 03:24:34,150 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:24:34,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:24:34,151 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:24:34,151 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:24:34,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,159 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,162 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,166 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:24:34,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:24:34,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:24:34,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:24:34,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:24:34,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:24:34,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:24:34,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:24:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:24:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:24:34,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:24:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:24:34,337 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:24:34,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:24:34,449 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 03:24:34,449 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:24:34,481 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:24:34,481 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:24:34,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:34 BoogieIcfgContainer [2024-12-06 03:24:34,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:24:34,482 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:24:34,482 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:24:34,490 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:24:34,490 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:34" (1/1) ... [2024-12-06 03:24:34,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:24:34,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:24:34,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:24:34,545 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:24:34,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:24:34,548 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:24:34,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:24:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:34,673 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:24:34,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:34,777 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:24:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:34,812 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:24:34,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:24:34 ImpRootNode [2024-12-06 03:24:34,832 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:24:34,832 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:24:34,833 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:24:34,833 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:24:34,833 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:34" (3/4) ... [2024-12-06 03:24:34,835 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:24:34,836 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:24:34,836 INFO L158 Benchmark]: Toolchain (without parser) took 1512.19ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 73.7MB in the end (delta: 39.6MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2024-12-06 03:24:34,837 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:34,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 783.99ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 54.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 03:24:34,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.30ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.0MB in the end (delta: -58.7MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2024-12-06 03:24:34,838 INFO L158 Benchmark]: Boogie Preprocessor took 17.44ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 112.4MB in the end (delta: 655.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:34,838 INFO L158 Benchmark]: RCFGBuilder took 312.69ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 97.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:24:34,839 INFO L158 Benchmark]: CodeCheck took 349.96ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 74.3MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:24:34,839 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 73.7MB in the end (delta: 668.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:34,841 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={12281:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 783.99ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 54.6MB in the end (delta: 58.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.30ms. Allocated memory is still 142.6MB. Free memory was 54.3MB in the beginning and 113.0MB in the end (delta: -58.7MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.44ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 112.4MB in the end (delta: 655.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.69ms. Allocated memory is still 142.6MB. Free memory was 111.7MB in the beginning and 97.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 349.96ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 74.3MB in the end (delta: 22.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 73.7MB in the end (delta: 668.4kB). 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 03:24:34,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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_ba163989-decd-4901-97c6-f0d9d1620e5f/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 a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:24:36,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:24:36,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 03:24:36,830 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:24:36,831 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:24:36,831 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:24:36,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:24:36,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:24:36,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:24:36,833 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:24:36,833 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 03:24:36,834 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:24:36,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 03:24:36,834 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 03:24:36,835 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_ba163989-decd-4901-97c6-f0d9d1620e5f/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 -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-12-06 03:24:37,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:24:37,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:24:37,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:24:37,063 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:24:37,063 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:24:37,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-12-06 03:24:39,774 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/22db6256c/67d5ec08fae945b19ca8ff3725cc7b68/FLAG48c23c5f4 [2024-12-06 03:24:40,057 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:24:40,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-12-06 03:24:40,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/22db6256c/67d5ec08fae945b19ca8ff3725cc7b68/FLAG48c23c5f4 [2024-12-06 03:24:40,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/data/22db6256c/67d5ec08fae945b19ca8ff3725cc7b68 [2024-12-06 03:24:40,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:24:40,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:24:40,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:24:40,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:24:40,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:24:40,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3a643c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40, skipping insertion in model container [2024-12-06 03:24:40,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,130 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:24:40,753 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:24:40,762 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:24:40,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:24:40,937 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:24:40,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40 WrapperNode [2024-12-06 03:24:40,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:24:40,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:24:40,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:24:40,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:24:40,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,978 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 03:24:40,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:24:40,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:24:40,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:24:40,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:24:40,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,998 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:40,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:41,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:41,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:41,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:41,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:24:41,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:24:41,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:24:41,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:24:41,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:24:40" (1/1) ... [2024-12-06 03:24:41,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:24:41,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:24:41,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:24:41,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 03:24:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:24:41,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:24:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-06 03:24:41,173 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:24:41,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:24:41,297 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 03:24:41,297 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:24:41,334 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:24:41,335 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:24:41,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:41 BoogieIcfgContainer [2024-12-06 03:24:41,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:24:41,336 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:24:41,336 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:24:41,345 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:24:41,345 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:41" (1/1) ... [2024-12-06 03:24:41,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:24:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:24:41,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 03:24:41,386 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 03:24:41,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 03:24:41,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:24:41,390 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 03:24:41,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 03:24:41,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 03:24:41,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 03:24:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:41,595 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:24:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:41,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:41,816 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:24:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:24:41,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 03:24:41,881 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 03:24:41,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:24:41 ImpRootNode [2024-12-06 03:24:41,900 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:24:41,900 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:24:41,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:24:41,901 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:24:41,901 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:24:41" (3/4) ... [2024-12-06 03:24:41,903 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 03:24:41,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:24:41,904 INFO L158 Benchmark]: Toolchain (without parser) took 1812.68ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 46.1MB in the end (delta: 19.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-06 03:24:41,904 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:41,904 INFO L158 Benchmark]: CACSL2BoogieTranslator took 845.91ms. Allocated memory is still 92.3MB. Free memory was 65.5MB in the beginning and 59.5MB in the end (delta: 6.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-06 03:24:41,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.92ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:41,905 INFO L158 Benchmark]: Boogie Preprocessor took 27.78ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:41,905 INFO L158 Benchmark]: RCFGBuilder took 327.36ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 38.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:24:41,906 INFO L158 Benchmark]: CodeCheck took 564.39ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 46.2MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:41,906 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 92.3MB. Free memory was 46.2MB in the beginning and 46.1MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:24:41,908 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 845.91ms. Allocated memory is still 92.3MB. Free memory was 65.5MB in the beginning and 59.5MB in the end (delta: 6.1MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.92ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.78ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 327.36ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 38.0MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 564.39ms. Allocated memory is still 92.3MB. Free memory was 38.0MB in the beginning and 46.2MB in the end (delta: -8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 92.3MB. Free memory was 46.2MB in the beginning and 46.1MB 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 03:24:41,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba163989-decd-4901-97c6-f0d9d1620e5f/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