./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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 da9c506dbd5a8a39c9dccf9393e01fc23287fe9cd5069388be080dbc228fa07d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:03:34,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:03:35,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 04:03:35,017 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:03:35,017 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:03:35,035 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:03:35,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:03:35,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:03:35,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:03:35,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:03:35,037 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:03:35,038 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:03:35,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:03:35,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:03:35,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:03:35,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:03:35,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:03:35,039 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:03:35,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:03:35,039 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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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 -> da9c506dbd5a8a39c9dccf9393e01fc23287fe9cd5069388be080dbc228fa07d [2024-12-06 04:03:35,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:03:35,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:03:35,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:03:35,275 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:03:35,276 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:03:35,277 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i [2024-12-06 04:03:37,887 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/6682fc3a0/ac83cae8135740dbbf1ce0a539023d23/FLAG6dccbf361 [2024-12-06 04:03:38,193 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:03:38,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i [2024-12-06 04:03:38,213 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/6682fc3a0/ac83cae8135740dbbf1ce0a539023d23/FLAG6dccbf361 [2024-12-06 04:03:38,472 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/6682fc3a0/ac83cae8135740dbbf1ce0a539023d23 [2024-12-06 04:03:38,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:03:38,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:03:38,476 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:03:38,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:03:38,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:03:38,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:03:38" (1/1) ... [2024-12-06 04:03:38,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a81e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:38, skipping insertion in model container [2024-12-06 04:03:38,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:03:38" (1/1) ... [2024-12-06 04:03:38,514 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:03:39,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:03:39,149 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:03:39,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:03:39,323 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:03:39,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39 WrapperNode [2024-12-06 04:03:39,324 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:03:39,325 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:03:39,325 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:03:39,325 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:03:39,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,344 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,360 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-12-06 04:03:39,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:03:39,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:03:39,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:03:39,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:03:39,366 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,368 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,368 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,372 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,373 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,376 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:03:39,379 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:03:39,379 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:03:39,379 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:03:39,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:03:39,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:03:39,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:03:39,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:03:39,425 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:03:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:03:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:03:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:03:39,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:03:39,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:03:39,535 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:03:39,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:03:39,625 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 04:03:39,625 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:03:39,655 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:03:39,655 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:03:39,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:39 BoogieIcfgContainer [2024-12-06 04:03:39,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:03:39,656 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:03:39,656 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:03:39,663 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:03:39,663 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:39" (1/1) ... [2024-12-06 04:03:39,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:03:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:03:39,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 04:03:39,706 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 04:03:39,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:03:39,709 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:03:39,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:03:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:39,786 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:03:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:39,844 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:03:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:39,870 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:03:39,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:03:39 ImpRootNode [2024-12-06 04:03:39,890 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:03:39,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:03:39,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:03:39,890 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:03:39,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:39" (3/4) ... [2024-12-06 04:03:39,892 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:03:39,893 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:03:39,894 INFO L158 Benchmark]: Toolchain (without parser) took 1418.36ms. Allocated memory is still 117.4MB. Free memory was 89.9MB in the beginning and 50.2MB in the end (delta: 39.7MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-12-06 04:03:39,894 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:39,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 847.98ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 81.6MB in the end (delta: 8.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-12-06 04:03:39,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.61ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:03:39,896 INFO L158 Benchmark]: Boogie Preprocessor took 17.46ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:39,896 INFO L158 Benchmark]: RCFGBuilder took 276.69ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 64.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:03:39,897 INFO L158 Benchmark]: CodeCheck took 233.62ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 50.2MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:03:39,897 INFO L158 Benchmark]: Witness Printer took 2.99ms. Allocated memory is still 117.4MB. Free memory is still 50.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:39,899 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1567] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 73.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 847.98ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 81.6MB in the end (delta: 8.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.61ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 79.2MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.46ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.69ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 64.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 233.62ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 50.2MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 2.99ms. Allocated memory is still 117.4MB. Free memory is still 50.2MB. 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 04:03:39,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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 da9c506dbd5a8a39c9dccf9393e01fc23287fe9cd5069388be080dbc228fa07d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:03:41,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:03:41,893 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 04:03:41,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:03:41,918 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:03:41,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:03:41,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:03:41,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:03:41,919 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:03:41,920 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:03:41,920 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 04:03:41,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:03:41,921 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:03:41,921 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 04:03:41,922 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 04:03:41,922 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 04:03:41,922 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_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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 -> da9c506dbd5a8a39c9dccf9393e01fc23287fe9cd5069388be080dbc228fa07d [2024-12-06 04:03:42,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:03:42,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:03:42,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:03:42,150 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:03:42,150 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:03:42,151 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i [2024-12-06 04:03:44,738 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/883b0f320/df8b776071a7422b974df8790a4052ab/FLAG340f95986 [2024-12-06 04:03:45,034 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:03:45,035 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_18_bad.i [2024-12-06 04:03:45,054 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/883b0f320/df8b776071a7422b974df8790a4052ab/FLAG340f95986 [2024-12-06 04:03:45,304 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/data/883b0f320/df8b776071a7422b974df8790a4052ab [2024-12-06 04:03:45,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:03:45,307 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:03:45,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:03:45,308 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:03:45,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:03:45,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:03:45" (1/1) ... [2024-12-06 04:03:45,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0f055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:45, skipping insertion in model container [2024-12-06 04:03:45,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:03:45" (1/1) ... [2024-12-06 04:03:45,344 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:03:45,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:03:45,935 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:03:46,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:03:46,119 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:03:46,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46 WrapperNode [2024-12-06 04:03:46,120 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:03:46,121 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:03:46,121 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:03:46,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:03:46,125 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,144 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,160 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-12-06 04:03:46,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:03:46,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:03:46,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:03:46,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:03:46,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,177 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,183 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:03:46,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:03:46,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:03:46,187 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:03:46,188 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:03:46,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:03:46,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:03:46,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:03:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 04:03:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 04:03:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 04:03:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:03:46,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:03:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:03:46,354 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:03:46,356 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:03:46,467 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 04:03:46,467 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:03:46,504 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:03:46,504 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:03:46,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:46 BoogieIcfgContainer [2024-12-06 04:03:46,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:03:46,505 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:03:46,505 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:03:46,514 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:03:46,514 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:46" (1/1) ... [2024-12-06 04:03:46,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:03:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:03:46,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 04:03:46,556 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 04:03:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:03:46,559 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:03:46,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 04:03:46,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 04:03:46,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 04:03:46,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 04:03:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:46,683 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:03:46,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:46,769 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:03:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:03:46,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 04:03:46,800 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 04:03:46,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:03:46 ImpRootNode [2024-12-06 04:03:46,821 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:03:46,822 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:03:46,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:03:46,822 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:03:46,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:03:46" (3/4) ... [2024-12-06 04:03:46,825 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 04:03:46,825 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:03:46,826 INFO L158 Benchmark]: Toolchain (without parser) took 1519.37ms. Allocated memory is still 92.3MB. Free memory was 65.5MB in the beginning and 55.9MB in the end (delta: 9.6MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-12-06 04:03:46,827 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:46,827 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.42ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 59.5MB in the end (delta: 5.8MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-06 04:03:46,827 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.11ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:46,828 INFO L158 Benchmark]: Boogie Preprocessor took 25.38ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:46,828 INFO L158 Benchmark]: RCFGBuilder took 317.43ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 39.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:03:46,828 INFO L158 Benchmark]: CodeCheck took 316.39ms. Allocated memory is still 92.3MB. Free memory was 39.1MB in the beginning and 55.9MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:46,829 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 55.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:03:46,831 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1567] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.42ms. Allocated memory is still 92.3MB. Free memory was 65.3MB in the beginning and 59.5MB in the end (delta: 5.8MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.11ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 56.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.38ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 317.43ms. Allocated memory is still 92.3MB. Free memory was 55.0MB in the beginning and 39.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 316.39ms. Allocated memory is still 92.3MB. Free memory was 39.1MB in the beginning and 55.9MB in the end (delta: -16.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 55.9MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 04:03:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8898365-8826-4227-80f8-3d7a5ea6dc2d/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