./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:03:23,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:03:23,676 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:03:23,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:03:23,680 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:03:23,699 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:03:23,700 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:03:23,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:03:23,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:03:23,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:03:23,701 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:03:23,702 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:03:23,702 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:03:23,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:03:23,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:03:23,703 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:03:23,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:03:23,703 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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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 -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2024-12-06 01:03:23,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:03:23,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:03:23,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:03:23,974 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:03:23,974 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:03:23,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2024-12-06 01:03:26,579 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/a34d1e7b6/f380cbd9234b49f69520e9f00034060a/FLAG77383011b [2024-12-06 01:03:26,890 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:03:26,891 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2024-12-06 01:03:26,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/a34d1e7b6/f380cbd9234b49f69520e9f00034060a/FLAG77383011b [2024-12-06 01:03:27,168 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/a34d1e7b6/f380cbd9234b49f69520e9f00034060a [2024-12-06 01:03:27,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:03:27,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:03:27,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:03:27,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:03:27,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:03:27,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:03:27" (1/1) ... [2024-12-06 01:03:27,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741854d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:27, skipping insertion in model container [2024-12-06 01:03:27,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:03:27" (1/1) ... [2024-12-06 01:03:27,219 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:03:27,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:03:27,853 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:03:27,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:03:28,004 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:03:28,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28 WrapperNode [2024-12-06 01:03:28,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:03:28,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:03:28,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:03:28,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:03:28,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,047 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-12-06 01:03:28,047 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:03:28,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:03:28,048 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:03:28,048 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:03:28,053 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,055 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,060 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,060 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:03:28,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:03:28,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:03:28,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:03:28,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:03:28,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:03:28,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:03:28,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:03:28,111 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:03:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:03:28,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:03:28,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:03:28,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:03:28,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:03:28,216 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:03:28,217 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:03:28,317 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 01:03:28,318 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:03:28,354 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:03:28,354 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:03:28,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:28 BoogieIcfgContainer [2024-12-06 01:03:28,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:03:28,355 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:03:28,355 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:03:28,363 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:03:28,363 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:28" (1/1) ... [2024-12-06 01:03:28,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:03:28,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:03:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:03:28,410 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:03:28,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:03:28,413 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:03:28,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:03:28,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:28,520 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:03:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:28,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:28,614 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:03:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:28,646 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:03:28,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:03:28 ImpRootNode [2024-12-06 01:03:28,672 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:03:28,672 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:03:28,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:03:28,673 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:03:28,673 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:28" (3/4) ... [2024-12-06 01:03:28,676 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:03:28,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:03:28,678 INFO L158 Benchmark]: Toolchain (without parser) took 1505.66ms. Allocated memory is still 142.6MB. Free memory was 114.2MB in the beginning and 77.9MB in the end (delta: 36.3MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2024-12-06 01:03:28,678 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:28,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.82ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 53.6MB in the end (delta: 60.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 01:03:28,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.94ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 112.7MB in the end (delta: -59.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-12-06 01:03:28,679 INFO L158 Benchmark]: Boogie Preprocessor took 16.35ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 111.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:28,680 INFO L158 Benchmark]: RCFGBuilder took 289.56ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 97.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:03:28,680 INFO L158 Benchmark]: CodeCheck took 317.00ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 77.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:03:28,680 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 142.6MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:28,683 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.82ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 53.6MB in the end (delta: 60.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.94ms. Allocated memory is still 142.6MB. Free memory was 53.6MB in the beginning and 112.7MB in the end (delta: -59.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.35ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 111.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.56ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 97.5MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 317.00ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 77.9MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 142.6MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:03:28,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:03:30,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:03:30,738 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:03:30,763 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:03:30,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:03:30,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:03:30,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:03:30,765 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:03:30,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:03:30,766 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:03:30,766 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:03:30,766 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:03:30,767 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:03:30,767 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:03:30,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:03:30,767 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:03:30,767 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:03:30,767 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:03:30,767 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_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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 -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2024-12-06 01:03:31,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:03:31,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:03:31,030 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:03:31,031 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:03:31,032 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:03:31,033 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2024-12-06 01:03:33,697 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/7c1318f3d/ce0d6fbbb63c4b9195d84476eac534a8/FLAGb7fb1e642 [2024-12-06 01:03:33,991 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:03:33,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2024-12-06 01:03:34,014 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/7c1318f3d/ce0d6fbbb63c4b9195d84476eac534a8/FLAGb7fb1e642 [2024-12-06 01:03:34,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/data/7c1318f3d/ce0d6fbbb63c4b9195d84476eac534a8 [2024-12-06 01:03:34,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:03:34,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:03:34,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:03:34,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:03:34,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:03:34,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:03:34" (1/1) ... [2024-12-06 01:03:34,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cef9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:34, skipping insertion in model container [2024-12-06 01:03:34,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:03:34" (1/1) ... [2024-12-06 01:03:34,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:03:34,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:03:34,833 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:03:34,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:03:35,056 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:03:35,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35 WrapperNode [2024-12-06 01:03:35,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:03:35,058 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:03:35,058 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:03:35,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:03:35,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,104 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 01:03:35,104 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:03:35,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:03:35,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:03:35,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:03:35,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,115 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,122 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,126 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:03:35,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:03:35,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:03:35,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:03:35,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:03:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:03:35,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:03:35,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:03:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:03:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:03:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:03:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:03:35,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:03:35,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:03:35,297 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:03:35,298 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:03:35,405 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 01:03:35,406 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:03:35,445 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:03:35,445 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:03:35,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:35 BoogieIcfgContainer [2024-12-06 01:03:35,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:03:35,446 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:03:35,447 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:03:35,456 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:03:35,456 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:35" (1/1) ... [2024-12-06 01:03:35,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:03:35,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:03:35,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:03:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:03:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:03:35,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:03:35,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:03:35,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:03:35,510 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:03:35,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:03:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:35,674 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:03:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:35,794 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:03:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:03:35,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:03:35,830 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:03:35,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:03:35 ImpRootNode [2024-12-06 01:03:35,854 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:03:35,855 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:03:35,855 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:03:35,855 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:03:35,856 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:03:35" (3/4) ... [2024-12-06 01:03:35,858 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:03:35,859 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:03:35,860 INFO L158 Benchmark]: Toolchain (without parser) took 1826.26ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 52.9MB in the end (delta: 14.0MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-12-06 01:03:35,860 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:35,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1022.13ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 62.1MB in the end (delta: 4.6MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2024-12-06 01:03:35,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.35ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:35,861 INFO L158 Benchmark]: Boogie Preprocessor took 24.46ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:35,862 INFO L158 Benchmark]: RCFGBuilder took 316.12ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:03:35,862 INFO L158 Benchmark]: CodeCheck took 407.98ms. Allocated memory is still 92.3MB. Free memory was 41.2MB in the beginning and 52.9MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:03:35,862 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:03:35,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1022.13ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 62.1MB in the end (delta: 4.6MB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.35ms. Allocated memory is still 92.3MB. Free memory was 62.1MB in the beginning and 59.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.46ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.12ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.2MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 407.98ms. Allocated memory is still 92.3MB. Free memory was 41.2MB in the beginning and 52.9MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 92.3MB. Free memory was 52.9MB in the beginning and 52.9MB in the end (delta: 18.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:03:35,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15da1f8f-eaf3-4b79-8dba-c2d1d8b25569/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