./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_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_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:13:00,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:13:00,189 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:13:00,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:13:00,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:13:00,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:13:00,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:13:00,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:13:00,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:13:00,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:13:00,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:13:00,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:13:00,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:13:00,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:13:00,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:13:00,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:13:00,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:13:00,228 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:13:00,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:13:00,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:13:00,229 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:13:00,229 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:13:00,230 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:13:00,230 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:13:00,230 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:13:00,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:13:00,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:00,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:13:00,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:13:00,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:13:00,231 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:13:00,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:13:00,231 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_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2024-11-25 02:13:00,528 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:13:00,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:13:00,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:13:00,544 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:13:00,545 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:13:00,549 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-25 02:13:03,609 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/bfd45fd79/2db81db57209478fa662e3921f4e4662/FLAG4fb1354b5 [2024-11-25 02:13:04,060 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:13:04,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-25 02:13:04,099 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/bfd45fd79/2db81db57209478fa662e3921f4e4662/FLAG4fb1354b5 [2024-11-25 02:13:04,122 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/bfd45fd79/2db81db57209478fa662e3921f4e4662 [2024-11-25 02:13:04,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:13:04,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:13:04,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:04,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:13:04,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:13:04,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:04" (1/1) ... [2024-11-25 02:13:04,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@797a79a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:04, skipping insertion in model container [2024-11-25 02:13:04,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:04" (1/1) ... [2024-11-25 02:13:04,202 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:13:05,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:05,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:13:05,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:05,360 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:13:05,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05 WrapperNode [2024-11-25 02:13:05,360 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:05,361 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:05,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:13:05,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:13:05,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,404 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-25 02:13:05,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:05,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:13:05,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:13:05,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:13:05,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,413 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,418 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,422 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,423 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:13:05,426 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:13:05,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:13:05,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:13:05,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:05,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:13:05,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:13:05,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:13:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:13:05,507 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:13:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:13:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:13:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:13:05,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:13:05,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:13:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:13:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:13:05,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:13:05,684 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:13:05,685 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:13:05,835 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-25 02:13:05,836 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:13:05,890 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:13:05,893 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:13:05,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:05 BoogieIcfgContainer [2024-11-25 02:13:05,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:13:05,895 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:13:05,895 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:13:05,905 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:13:05,905 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:05" (1/1) ... [2024-11-25 02:13:05,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:13:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:13:05,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:13:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:13:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:13:05,974 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:13:05,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:13:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:06,123 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:06,305 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:06,356 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:13:06,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:13:06 ImpRootNode [2024-11-25 02:13:06,388 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:13:06,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:13:06,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:13:06,389 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:13:06,390 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:05" (3/4) ... [2024-11-25 02:13:06,392 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:13:06,393 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:13:06,395 INFO L158 Benchmark]: Toolchain (without parser) took 2268.33ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 42.3MB in the end (delta: 48.4MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-11-25 02:13:06,397 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:06,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1231.91ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 84.1MB in the end (delta: 6.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-25 02:13:06,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.00ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 81.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:06,399 INFO L158 Benchmark]: Boogie Preprocessor took 21.20ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 935.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:06,400 INFO L158 Benchmark]: RCFGBuilder took 467.67ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 65.1MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:06,400 INFO L158 Benchmark]: CodeCheck took 493.37ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 42.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:13:06,401 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 117.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:06,404 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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: 1579]: 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_64_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={11651:0}, 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_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] 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 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1231.91ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 84.1MB in the end (delta: 6.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.00ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 81.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.20ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 80.2MB in the end (delta: 935.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 467.67ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 65.1MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 493.37ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 42.3MB in the end (delta: 22.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 117.4MB. Free memory is still 42.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:13:06,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:13:09,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:13:09,358 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:13:09,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:13:09,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:13:09,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:13:09,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:13:09,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:13:09,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:13:09,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:13:09,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:13:09,392 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:13:09,393 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:13:09,393 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:13:09,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:09,394 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:09,394 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:13:09,395 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_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ebc932bd199917f9ad99094f7e9284ecfea27512ecfbbcfcde8a19d6cf35dc5 [2024-11-25 02:13:09,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:13:09,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:13:09,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:13:09,724 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:13:09,725 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:13:09,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-25 02:13:12,729 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/55d19b07f/d089424f9e9a42f6b9f29cdafb3b91fd/FLAGa0bb1f74d [2024-11-25 02:13:13,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:13:13,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_64_bad.i [2024-11-25 02:13:13,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/55d19b07f/d089424f9e9a42f6b9f29cdafb3b91fd/FLAGa0bb1f74d [2024-11-25 02:13:13,287 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/data/55d19b07f/d089424f9e9a42f6b9f29cdafb3b91fd [2024-11-25 02:13:13,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:13:13,291 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:13:13,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:13,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:13:13,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:13:13,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:13" (1/1) ... [2024-11-25 02:13:13,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569230ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:13, skipping insertion in model container [2024-11-25 02:13:13,300 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:13:13" (1/1) ... [2024-11-25 02:13:13,351 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:13:14,324 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-25 02:13:14,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:14,343 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:13:14,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:13:14,617 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:13:14,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14 WrapperNode [2024-11-25 02:13:14,617 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:13:14,618 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:14,618 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:13:14,618 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:13:14,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,654 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,677 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-25 02:13:14,677 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:13:14,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:13:14,678 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:13:14,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:13:14,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,697 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,700 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,706 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:13:14,707 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:13:14,707 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:13:14,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:13:14,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:13:14" (1/1) ... [2024-11-25 02:13:14,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:13:14,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:13:14,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:13:14,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:13:14,792 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:13:14,792 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:13:14,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:13:14,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 02:13:15,004 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:13:15,006 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:13:15,261 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 02:13:15,261 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:13:15,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:13:15,340 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:13:15,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:15 BoogieIcfgContainer [2024-11-25 02:13:15,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:13:15,341 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:13:15,341 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:13:15,350 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:13:15,350 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:15" (1/1) ... [2024-11-25 02:13:15,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:13:15,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:13:15,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:13:15,423 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:13:15,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:13:15,426 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:13:15,427 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:13:15,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:13:15,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:13:15,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:13:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:15,718 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:15,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:15,990 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:13:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:13:16,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:13:16,091 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:13:16,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:13:16 ImpRootNode [2024-11-25 02:13:16,139 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:13:16,141 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:13:16,141 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:13:16,141 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:13:16,142 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:13:15" (3/4) ... [2024-11-25 02:13:16,145 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:13:16,147 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:13:16,151 INFO L158 Benchmark]: Toolchain (without parser) took 2856.65ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 32.1MB in the end (delta: 25.2MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2024-11-25 02:13:16,152 INFO L158 Benchmark]: CDTParser took 3.06ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:16,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1324.70ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 52.4MB in the end (delta: 4.6MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-25 02:13:16,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.38ms. Allocated memory is still 83.9MB. Free memory was 52.4MB in the beginning and 49.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:16,153 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:16,158 INFO L158 Benchmark]: RCFGBuilder took 632.89ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 30.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:13:16,158 INFO L158 Benchmark]: CodeCheck took 798.30ms. Allocated memory is still 83.9MB. Free memory was 30.4MB in the beginning and 32.5MB in the end (delta: -2.1MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2024-11-25 02:13:16,159 INFO L158 Benchmark]: Witness Printer took 6.40ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 3.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:13:16,161 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: 0.7s, 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: 1579]: 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_64_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_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] 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 3.06ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1324.70ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 52.4MB in the end (delta: 4.6MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.38ms. Allocated memory is still 83.9MB. Free memory was 52.4MB in the beginning and 49.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 83.9MB. Free memory was 49.7MB in the beginning and 47.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 632.89ms. Allocated memory is still 83.9MB. Free memory was 47.7MB in the beginning and 30.4MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 798.30ms. Allocated memory is still 83.9MB. Free memory was 30.4MB in the beginning and 32.5MB in the end (delta: -2.1MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 6.40ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 32.1MB in the end (delta: 3.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:13:16,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45e0d136-1591-47ae-aaa9-1bfa70f836b2/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample