./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:27:57,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:27:57,510 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:27:57,515 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:27:57,515 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:27:57,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:27:57,537 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:27:57,537 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:27:57,537 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:27:57,537 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:27:57,538 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:27:57,538 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:27:57,539 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:27:57,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:27:57,539 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:27:57,539 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:27:57,540 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:27:57,540 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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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 -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2024-12-06 05:27:57,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:27:57,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:27:57,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:27:57,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:27:57,760 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:27:57,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-12-06 05:28:00,430 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/85b4ed97c/60b48a3c2d4843d790686a092e131bb9/FLAG8282218cb [2024-12-06 05:28:00,724 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:28:00,725 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-12-06 05:28:00,742 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/85b4ed97c/60b48a3c2d4843d790686a092e131bb9/FLAG8282218cb [2024-12-06 05:28:00,755 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/85b4ed97c/60b48a3c2d4843d790686a092e131bb9 [2024-12-06 05:28:00,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:28:00,758 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:28:00,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:28:00,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:28:00,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:28:00,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:00" (1/1) ... [2024-12-06 05:28:00,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4208c32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:00, skipping insertion in model container [2024-12-06 05:28:00,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:00" (1/1) ... [2024-12-06 05:28:00,796 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:28:01,419 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:28:01,428 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:28:01,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:28:01,588 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:28:01,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01 WrapperNode [2024-12-06 05:28:01,588 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:28:01,589 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:28:01,589 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:28:01,589 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:28:01,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,634 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-12-06 05:28:01,634 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:28:01,634 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:28:01,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:28:01,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:28:01,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,647 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,651 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,651 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,653 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:28:01,654 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:28:01,654 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:28:01,654 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:28:01,655 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:28:01,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:28:01,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:28:01,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:28:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:28:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:28:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:28:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:28:01,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:28:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:28:01,827 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:28:01,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:28:01,919 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 05:28:01,919 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:28:01,954 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:28:01,954 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:28:01,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:01 BoogieIcfgContainer [2024-12-06 05:28:01,955 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:28:01,955 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:28:01,955 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:28:01,964 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:28:01,964 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:01" (1/1) ... [2024-12-06 05:28:01,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:28:02,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:28:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:28:02,019 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:28:02,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:28:02,022 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:28:02,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:28:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:02,131 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:28:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:02,212 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:28:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:02,240 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:28:02,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:28:02 ImpRootNode [2024-12-06 05:28:02,263 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:28:02,264 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:28:02,264 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:28:02,264 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:28:02,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:01" (3/4) ... [2024-12-06 05:28:02,267 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:28:02,268 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:28:02,269 INFO L158 Benchmark]: Toolchain (without parser) took 1510.34ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 77.5MB in the end (delta: 35.5MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-12-06 05:28:02,269 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:02,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.31ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 52.8MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 05:28:02,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.08ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 111.3MB in the end (delta: -58.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-06 05:28:02,270 INFO L158 Benchmark]: Boogie Preprocessor took 18.88ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 110.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:02,271 INFO L158 Benchmark]: RCFGBuilder took 300.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 96.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:28:02,271 INFO L158 Benchmark]: CodeCheck took 307.76ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 77.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:28:02,271 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 142.6MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:02,273 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 1563, overapproximation of fgets at line 1561. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] 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] [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1570] CALL badSink(data) [L1551] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.31ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 52.8MB in the end (delta: 60.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.08ms. Allocated memory is still 142.6MB. Free memory was 52.8MB in the beginning and 111.3MB in the end (delta: -58.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.88ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 110.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 300.61ms. Allocated memory is still 142.6MB. Free memory was 110.0MB in the beginning and 96.5MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 307.76ms. Allocated memory is still 142.6MB. Free memory was 96.5MB in the beginning and 77.5MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 142.6MB. Free memory is still 77.5MB. 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 05:28:02,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:28:04,191 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:28:04,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:28:04,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:28:04,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:28:04,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:28:04,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:28:04,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:28:04,289 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:28:04,290 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:28:04,290 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:28:04,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:28:04,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:28:04,291 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:28:04,291 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_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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 -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2024-12-06 05:28:04,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:28:04,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:28:04,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:28:04,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:28:04,523 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:28:04,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-12-06 05:28:07,170 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/9c471f3ef/551dc0a166eb4b8695b7ec3e4dd59f51/FLAG97b7cdf51 [2024-12-06 05:28:07,455 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:28:07,456 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2024-12-06 05:28:07,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/9c471f3ef/551dc0a166eb4b8695b7ec3e4dd59f51/FLAG97b7cdf51 [2024-12-06 05:28:07,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/data/9c471f3ef/551dc0a166eb4b8695b7ec3e4dd59f51 [2024-12-06 05:28:07,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:28:07,489 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:28:07,490 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:28:07,490 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:28:07,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:28:07,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:07" (1/1) ... [2024-12-06 05:28:07,495 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 05:28:07, skipping insertion in model container [2024-12-06 05:28:07,496 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:28:07" (1/1) ... [2024-12-06 05:28:07,530 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:28:08,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:28:08,166 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:28:08,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:28:08,363 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:28:08,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08 WrapperNode [2024-12-06 05:28:08,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:28:08,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:28:08,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:28:08,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:28:08,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,405 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-12-06 05:28:08,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:28:08,406 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:28:08,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:28:08,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:28:08,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,421 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,424 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:28:08,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:28:08,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:28:08,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:28:08,432 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:28:08,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:28:08,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:28:08,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:28:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:28:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:28:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:28:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:28:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:28:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:28:08,599 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:28:08,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:28:08,709 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 05:28:08,709 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:28:08,747 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:28:08,747 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:28:08,747 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:08 BoogieIcfgContainer [2024-12-06 05:28:08,747 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:28:08,748 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:28:08,748 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:28:08,757 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:28:08,758 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:08" (1/1) ... [2024-12-06 05:28:08,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:28:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:28:08,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:28:08,803 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:28:08,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:28:08,806 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:28:08,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:28:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:28:08,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:28:08,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:28:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:08,958 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:28:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:09,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:09,065 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:28:09,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:28:09,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:28:09,099 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:28:09,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:28:09 ImpRootNode [2024-12-06 05:28:09,122 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:28:09,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:28:09,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:28:09,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:28:09,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:28:08" (3/4) ... [2024-12-06 05:28:09,126 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:28:09,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:28:09,127 INFO L158 Benchmark]: Toolchain (without parser) took 1637.95ms. Allocated memory is still 92.3MB. Free memory was 66.9MB in the beginning and 53.1MB in the end (delta: 13.8MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-12-06 05:28:09,128 INFO L158 Benchmark]: CDTParser took 0.30ms. 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 05:28:09,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.93ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 61.3MB in the end (delta: 5.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-06 05:28:09,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.76ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 58.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:09,129 INFO L158 Benchmark]: Boogie Preprocessor took 24.32ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:09,129 INFO L158 Benchmark]: RCFGBuilder took 316.19ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 40.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:28:09,130 INFO L158 Benchmark]: CodeCheck took 374.11ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 53.1MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:09,130 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:28:09,132 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 1563, overapproximation of fgets at line 1561. 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); [L1575] 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) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] 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] [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1570] CALL badSink(data) [L1551] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.93ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 61.3MB in the end (delta: 5.4MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.76ms. Allocated memory is still 92.3MB. Free memory was 61.3MB in the beginning and 58.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.32ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 56.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.19ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 40.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 374.11ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 53.1MB in the end (delta: -12.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 92.3MB. Free memory was 53.1MB in the beginning and 53.1MB in the end (delta: 43.7kB). 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 05:28:09,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37f3aad0-cd83-4a19-8829-b7913dc2fde7/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