./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_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_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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_396f7602-10c7-4c9f-b115-83cf6cf9760b/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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:27:07,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:27:07,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:27:07,983 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:27:07,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:27:08,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:27:08,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:27:08,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:27:08,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:27:08,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:27:08,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:27:08,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:27:08,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:27:08,004 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:27:08,004 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:27:08,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:27:08,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:27:08,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:27:08,005 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_396f7602-10c7-4c9f-b115-83cf6cf9760b/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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-12-05 23:27:08,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:27:08,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:27:08,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:27:08,247 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:27:08,247 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:27:08,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-12-05 23:27:10,929 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/35e53ae12/6980e348f2f04cc9846e8d5d7216dfad/FLAG9d89553f5 [2024-12-05 23:27:11,236 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:27:11,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-12-05 23:27:11,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/35e53ae12/6980e348f2f04cc9846e8d5d7216dfad/FLAG9d89553f5 [2024-12-05 23:27:11,503 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/35e53ae12/6980e348f2f04cc9846e8d5d7216dfad [2024-12-05 23:27:11,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:27:11,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:27:11,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:27:11,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:27:11,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:27:11,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:27:11" (1/1) ... [2024-12-05 23:27:11,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1225dd7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:11, skipping insertion in model container [2024-12-05 23:27:11,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:27:11" (1/1) ... [2024-12-05 23:27:11,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:27:12,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:27:12,187 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:27:12,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:27:12,356 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:27:12,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12 WrapperNode [2024-12-05 23:27:12,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:27:12,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:27:12,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:27:12,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:27:12,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,379 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,399 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-05 23:27:12,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:27:12,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:27:12,401 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:27:12,401 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:27:12,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,414 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,414 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,418 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,419 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:27:12,420 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:27:12,420 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:27:12,420 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:27:12,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:27:12,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:27:12,445 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:27:12,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:27:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:27:12,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:27:12,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:27:12,569 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:27:12,570 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:27:12,667 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-12-05 23:27:12,667 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:27:12,700 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:27:12,700 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:27:12,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:12 BoogieIcfgContainer [2024-12-05 23:27:12,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:27:12,701 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:27:12,701 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:27:12,708 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:27:12,709 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:12" (1/1) ... [2024-12-05 23:27:12,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:27:12,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:27:12,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:27:12,753 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:27:12,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:27:12,756 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:27:12,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:27:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:12,857 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:27:12,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:12,938 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:27:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:12,965 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:27:12,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:27:12 ImpRootNode [2024-12-05 23:27:12,987 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:27:12,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:27:12,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:27:12,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:27:12,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:12" (3/4) ... [2024-12-05 23:27:12,990 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:27:12,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:27:12,991 INFO L158 Benchmark]: Toolchain (without parser) took 1485.02ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 79.0MB in the end (delta: 34.4MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-12-05 23:27:12,991 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:12,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 850.16ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 54.9MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 23:27:12,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 113.4MB in the end (delta: -58.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-12-05 23:27:12,992 INFO L158 Benchmark]: Boogie Preprocessor took 18.58ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 112.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:12,993 INFO L158 Benchmark]: RCFGBuilder took 281.06ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 98.1MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:27:12,993 INFO L158 Benchmark]: CodeCheck took 285.55ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 79.0MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 23:27:12,993 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:12,996 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1577]: 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_postdec_51_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=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_postdec_51b_badSink(data) [L1577] 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 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 850.16ms. Allocated memory is still 142.6MB. Free memory was 113.2MB in the beginning and 54.9MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 113.4MB in the end (delta: -58.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.58ms. Allocated memory is still 142.6MB. Free memory was 113.4MB in the beginning and 112.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 281.06ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 98.1MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 285.55ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 79.0MB in the end (delta: 19.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:27:13,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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_396f7602-10c7-4c9f-b115-83cf6cf9760b/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 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:27:14,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:27:15,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 23:27:15,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:27:15,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:27:15,041 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:27:15,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:27:15,041 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:27:15,042 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:27:15,042 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:27:15,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:27:15,043 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:27:15,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:27:15,044 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:27:15,044 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_396f7602-10c7-4c9f-b115-83cf6cf9760b/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 -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-12-05 23:27:15,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:27:15,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:27:15,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:27:15,284 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:27:15,284 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:27:15,285 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-12-05 23:27:17,993 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/594eed1b7/12d7a44248194802862347e7ba2570d2/FLAG59bf8e2b6 [2024-12-05 23:27:18,264 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:27:18,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-12-05 23:27:18,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/594eed1b7/12d7a44248194802862347e7ba2570d2/FLAG59bf8e2b6 [2024-12-05 23:27:18,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/data/594eed1b7/12d7a44248194802862347e7ba2570d2 [2024-12-05 23:27:18,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:27:18,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:27:18,547 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:27:18,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:27:18,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:27:18,552 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:27:18" (1/1) ... [2024-12-05 23:27:18,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b976ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:18, skipping insertion in model container [2024-12-05 23:27:18,553 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:27:18" (1/1) ... [2024-12-05 23:27:18,587 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:27:19,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:27:19,185 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:27:19,277 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:27:19,399 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:27:19,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19 WrapperNode [2024-12-05 23:27:19,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:27:19,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:27:19,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:27:19,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:27:19,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,440 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2024-12-05 23:27:19,440 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:27:19,441 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:27:19,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:27:19,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:27:19,446 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,449 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,449 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,456 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,457 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:27:19,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:27:19,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:27:19,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:27:19,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:27:19,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:27:19,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:27:19,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:27:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:27:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:27:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:27:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:27:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:27:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:27:19,622 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:27:19,623 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:27:19,724 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 23:27:19,724 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:27:19,762 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:27:19,762 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:27:19,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:19 BoogieIcfgContainer [2024-12-05 23:27:19,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:27:19,763 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:27:19,763 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:27:19,770 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:27:19,770 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:19" (1/1) ... [2024-12-05 23:27:19,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:27:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:27:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:27:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:27:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:27:19,815 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:27:19,815 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:27:19,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:27:19,817 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:27:19,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:27:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:19,964 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:27:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:20,072 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:27:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:27:20,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:27:20,103 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:27:20,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:27:20 ImpRootNode [2024-12-05 23:27:20,128 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:27:20,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:27:20,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:27:20,129 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:27:20,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:27:19" (3/4) ... [2024-12-05 23:27:20,132 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:27:20,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:27:20,134 INFO L158 Benchmark]: Toolchain (without parser) took 1587.53ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 66.6MB in the beginning and 112.2MB in the end (delta: -45.6MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-12-05 23:27:20,134 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:20,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 852.41ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.1MB in the end (delta: 4.3MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-05 23:27:20,135 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.92ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:20,136 INFO L158 Benchmark]: Boogie Preprocessor took 23.63ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:20,136 INFO L158 Benchmark]: RCFGBuilder took 297.57ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 41.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:27:20,136 INFO L158 Benchmark]: CodeCheck took 365.18ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 41.5MB in the beginning and 112.8MB in the end (delta: -71.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:20,137 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 112.2MB in the end (delta: 534.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:27:20,139 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: 1577]: 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_postdec_51_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=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_postdec_51b_badSink(data) [L1577] 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 0.27ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 852.41ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.1MB in the end (delta: 4.3MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.92ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.63ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 58.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.57ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 41.5MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 365.18ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 41.5MB in the beginning and 112.8MB in the end (delta: -71.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 151.0MB. Free memory was 112.8MB in the beginning and 112.2MB in the end (delta: 534.1kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:27:20,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_396f7602-10c7-4c9f-b115-83cf6cf9760b/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