./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_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_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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_c83208aa-c2af-45ec-bf26-842d12dc8b99/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 cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:28:55,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:28:55,869 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:28:55,874 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:28:55,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:28:55,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:28:55,893 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:28:55,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:28:55,894 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:28:55,894 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:28:55,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:28:55,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:28:55,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:28:55,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:28:55,895 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:28:55,895 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:28:55,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:28:55,896 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:28:55,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:28:55,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:28:55,896 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:28:55,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:28:55,896 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_c83208aa-c2af-45ec-bf26-842d12dc8b99/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 -> cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 [2024-12-06 05:28:56,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:28:56,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:28:56,135 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:28:56,136 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:28:56,136 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:28:56,138 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-12-06 05:28:58,790 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/9ab6a9b48/4d90c0bf714d4a1b8a96e79f29536763/FLAGc714be49a [2024-12-06 05:28:59,081 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:28:59,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-12-06 05:28:59,100 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/9ab6a9b48/4d90c0bf714d4a1b8a96e79f29536763/FLAGc714be49a [2024-12-06 05:28:59,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/9ab6a9b48/4d90c0bf714d4a1b8a96e79f29536763 [2024-12-06 05:28:59,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:28:59,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:28:59,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:28:59,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:28:59,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:28:59,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:59" (1/1) ... [2024-12-06 05:28:59,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78e3ab51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:59, skipping insertion in model container [2024-12-06 05:28:59,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:59" (1/1) ... [2024-12-06 05:28:59,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:28:59,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:28:59,975 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:29:00,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:29:00,144 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:29:00,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00 WrapperNode [2024-12-06 05:29:00,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:29:00,145 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:29:00,145 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:29:00,145 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:29:00,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,190 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 67 [2024-12-06 05:29:00,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:29:00,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:29:00,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:29:00,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:29:00,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,200 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,205 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,207 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,209 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:29:00,212 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:29:00,212 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:29:00,212 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:29:00,213 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:29:00,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:29:00,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:29:00,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:29:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:29:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:29:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:29:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:29:00,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:29:00,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:29:00,369 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:29:00,371 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:29:00,471 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-12-06 05:29:00,471 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:29:00,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:29:00,504 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:29:00,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:00 BoogieIcfgContainer [2024-12-06 05:29:00,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:29:00,505 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:29:00,505 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:29:00,514 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:29:00,514 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:00" (1/1) ... [2024-12-06 05:29:00,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:29:00,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:29:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:29:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:29:00,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:29:00,571 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:29:00,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:29:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:00,685 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:29:00,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:00,776 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:29:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:00,804 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:29:00,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:29:00 ImpRootNode [2024-12-06 05:29:00,827 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:29:00,827 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:29:00,827 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:29:00,828 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:29:00,828 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:00" (3/4) ... [2024-12-06 05:29:00,830 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:29:00,831 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:29:00,832 INFO L158 Benchmark]: Toolchain (without parser) took 1480.68ms. Allocated memory is still 142.6MB. Free memory was 113.8MB in the beginning and 77.7MB in the end (delta: 36.2MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-12-06 05:29:00,832 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:00,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.16ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 54.6MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 05:29:00,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.82ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 113.1MB in the end (delta: -58.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-12-06 05:29:00,834 INFO L158 Benchmark]: Boogie Preprocessor took 21.00ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 112.4MB in the end (delta: 655.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:00,834 INFO L158 Benchmark]: RCFGBuilder took 292.26ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 97.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:29:00,834 INFO L158 Benchmark]: CodeCheck took 321.62ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 78.3MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:29:00,835 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 77.7MB in the end (delta: 655.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:00,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.16ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 54.6MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.82ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 113.1MB in the end (delta: -58.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.00ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 112.4MB in the end (delta: 655.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.26ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 97.2MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 321.62ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 78.3MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 142.6MB. Free memory was 78.3MB in the beginning and 77.7MB in the end (delta: 655.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:29:00,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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_c83208aa-c2af-45ec-bf26-842d12dc8b99/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 cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:29:02,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:29:02,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:29:02,814 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:29:02,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:29:02,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:29:02,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:29:02,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:29:02,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:29:02,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:29:02,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:29:02,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:29:02,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:29:02,816 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:29:02,816 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:29:02,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:29:02,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:29:02,817 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:29:02,817 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_c83208aa-c2af-45ec-bf26-842d12dc8b99/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 -> cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 [2024-12-06 05:29:03,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:29:03,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:29:03,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:29:03,055 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:29:03,055 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:29:03,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-12-06 05:29:05,731 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/5aa52d2cc/b1e9f43a794a4145a38bea30dad9125a/FLAG1e6de60e7 [2024-12-06 05:29:06,034 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:29:06,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-12-06 05:29:06,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/5aa52d2cc/b1e9f43a794a4145a38bea30dad9125a/FLAG1e6de60e7 [2024-12-06 05:29:06,071 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/data/5aa52d2cc/b1e9f43a794a4145a38bea30dad9125a [2024-12-06 05:29:06,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:29:06,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:29:06,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:29:06,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:29:06,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:29:06,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,081 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44412213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06, skipping insertion in model container [2024-12-06 05:29:06,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:29:06,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:29:06,727 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:29:06,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:29:06,929 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:29:06,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06 WrapperNode [2024-12-06 05:29:06,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:29:06,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:29:06,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:29:06,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:29:06,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,971 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 66 [2024-12-06 05:29:06,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:29:06,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:29:06,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:29:06,972 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:29:06,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,988 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,993 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:06,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:29:06,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:29:06,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:29:06,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:29:06,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:29:06" (1/1) ... [2024-12-06 05:29:07,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:29:07,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:29:07,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:29:07,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:29:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:29:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:29:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:29:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:29:07,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:29:07,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:29:07,163 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:29:07,164 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:29:07,278 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-06 05:29:07,278 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:29:07,310 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:29:07,311 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:29:07,311 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:07 BoogieIcfgContainer [2024-12-06 05:29:07,311 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:29:07,312 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:29:07,312 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:29:07,319 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:29:07,319 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:07" (1/1) ... [2024-12-06 05:29:07,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:29:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:29:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:29:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:29:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:29:07,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:29:07,362 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:29:07,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:29:07,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:29:07,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:29:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:07,534 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:29:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:07,652 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:29:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:29:07,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-06 05:29:07,689 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:29:07,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:29:07 ImpRootNode [2024-12-06 05:29:07,711 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:29:07,712 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:29:07,712 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:29:07,712 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:29:07,713 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:29:07" (3/4) ... [2024-12-06 05:29:07,715 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:29:07,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:29:07,717 INFO L158 Benchmark]: Toolchain (without parser) took 1642.35ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.4MB in the beginning and 102.6MB in the end (delta: -36.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-12-06 05:29:07,717 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:07,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 855.00ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.2MB in the end (delta: 4.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-12-06 05:29:07,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.09ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 59.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:07,718 INFO L158 Benchmark]: Boogie Preprocessor took 24.51ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 57.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:07,718 INFO L158 Benchmark]: RCFGBuilder took 314.48ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 41.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:29:07,719 INFO L158 Benchmark]: CodeCheck took 399.53ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.0MB in the beginning and 103.1MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:29:07,719 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 102.6MB in the end (delta: 532.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:29:07,721 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 855.00ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 62.2MB in the end (delta: 4.0MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.09ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 59.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.51ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 57.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.48ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 41.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 399.53ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.0MB in the beginning and 103.1MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 142.6MB. Free memory was 103.1MB in the beginning and 102.6MB in the end (delta: 532.7kB). 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 05:29:07,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c83208aa-c2af-45ec-bf26-842d12dc8b99/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