./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_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_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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_9782ebf0-60e5-47b6-9276-4001331082f1/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 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:21:41,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:21:41,611 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:21:41,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:21:41,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:21:41,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:21:41,642 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:21:41,642 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:21:41,643 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:21:41,643 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:21:41,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:21:41,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:21:41,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:21:41,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:21:41,644 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:21:41,644 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:21:41,645 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:21:41,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:21:41,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:21:41,646 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_9782ebf0-60e5-47b6-9276-4001331082f1/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 -> 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 [2024-12-05 23:21:41,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:21:41,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:21:41,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:21:41,981 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:21:41,981 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:21:41,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-12-05 23:21:45,322 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/a5c004d21/f3de8f4ccd024a03b2bfe87817ce31a8/FLAG86332c10a [2024-12-05 23:21:45,682 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:21:45,682 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-12-05 23:21:45,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/a5c004d21/f3de8f4ccd024a03b2bfe87817ce31a8/FLAG86332c10a [2024-12-05 23:21:45,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/a5c004d21/f3de8f4ccd024a03b2bfe87817ce31a8 [2024-12-05 23:21:45,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:21:45,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:21:45,730 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:21:45,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:21:45,736 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:21:45,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:45" (1/1) ... [2024-12-05 23:21:45,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d3ab85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:45, skipping insertion in model container [2024-12-05 23:21:45,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:45" (1/1) ... [2024-12-05 23:21:45,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:21:46,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:21:46,674 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:21:46,776 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:21:46,895 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:21:46,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46 WrapperNode [2024-12-05 23:21:46,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:21:46,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:21:46,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:21:46,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:21:46,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,950 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-12-05 23:21:46,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:21:46,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:21:46,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:21:46,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:21:46,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:21:46,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:21:46,981 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:21:46,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:21:46,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:46" (1/1) ... [2024-12-05 23:21:46,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:21:47,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:21:47,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:21:47,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:21:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:21:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:21:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:21:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 23:21:47,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:21:47,192 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:21:47,194 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:21:47,332 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-12-05 23:21:47,332 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:21:47,370 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:21:47,371 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:21:47,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:47 BoogieIcfgContainer [2024-12-05 23:21:47,371 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:21:47,372 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:21:47,372 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:21:47,384 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:21:47,384 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:47" (1/1) ... [2024-12-05 23:21:47,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:21:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:21:47,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:21:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:21:47,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:21:47,447 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:21:47,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:21:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:47,594 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:21:47,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:47,727 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:21:47,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:47,766 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:21:47,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:21:47 ImpRootNode [2024-12-05 23:21:47,793 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:21:47,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:21:47,794 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:21:47,794 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:21:47,795 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:47" (3/4) ... [2024-12-05 23:21:47,798 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:21:47,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:21:47,800 INFO L158 Benchmark]: Toolchain (without parser) took 2071.26ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 74.3MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-05 23:21:47,800 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:47,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1166.05ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 53.8MB in the end (delta: 58.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 23:21:47,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.90ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 113.1MB in the end (delta: -59.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-05 23:21:47,802 INFO L158 Benchmark]: Boogie Preprocessor took 28.51ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.8MB in the end (delta: 656.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:47,802 INFO L158 Benchmark]: RCFGBuilder took 390.42ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 96.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:21:47,803 INFO L158 Benchmark]: CodeCheck took 420.93ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 75.0MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:21:47,803 INFO L158 Benchmark]: Witness Printer took 4.75ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 74.3MB in the end (delta: 656.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:47,806 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1580]: 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={19268:0}, 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) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1166.05ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 53.8MB in the end (delta: 58.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.90ms. Allocated memory is still 142.6MB. Free memory was 53.8MB in the beginning and 113.1MB in the end (delta: -59.2MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.51ms. Allocated memory is still 142.6MB. Free memory was 112.4MB in the beginning and 111.8MB in the end (delta: 656.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 390.42ms. Allocated memory is still 142.6MB. Free memory was 111.8MB in the beginning and 96.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 420.93ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 75.0MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.75ms. Allocated memory is still 142.6MB. Free memory was 75.0MB in the beginning and 74.3MB in the end (delta: 656.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:21:47,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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_9782ebf0-60e5-47b6-9276-4001331082f1/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 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:21:50,253 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:21:50,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 23:21:50,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:21:50,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:21:50,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:21:50,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:21:50,391 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:21:50,391 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:21:50,392 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:21:50,393 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:21:50,393 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:21:50,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:21:50,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:21:50,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:21:50,394 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:21:50,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:21:50,394 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:21:50,394 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_9782ebf0-60e5-47b6-9276-4001331082f1/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 -> 0a72baf5b6d3daa8ef9e95fda41fcc26db70c717a1a799cba9ecd89cc578d7e6 [2024-12-05 23:21:50,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:21:50,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:21:50,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:21:50,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:21:50,699 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:21:50,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-12-05 23:21:54,146 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/4a179f2a4/dd0acb0f6d3b47429d299556180f0013/FLAGa500e6ec7 [2024-12-05 23:21:54,561 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:21:54,561 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_66_bad.i [2024-12-05 23:21:54,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/4a179f2a4/dd0acb0f6d3b47429d299556180f0013/FLAGa500e6ec7 [2024-12-05 23:21:54,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/data/4a179f2a4/dd0acb0f6d3b47429d299556180f0013 [2024-12-05 23:21:54,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:21:54,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:21:54,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:21:54,724 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:21:54,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:21:54,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:54" (1/1) ... [2024-12-05 23:21:54,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9e39551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:54, skipping insertion in model container [2024-12-05 23:21:54,733 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:21:54" (1/1) ... [2024-12-05 23:21:54,779 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:21:55,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:21:55,715 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:21:55,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:21:55,962 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:21:55,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55 WrapperNode [2024-12-05 23:21:55,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:21:55,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:21:55,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:21:55,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:21:55,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:55,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,016 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-12-05 23:21:56,016 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:21:56,017 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:21:56,017 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:21:56,017 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:21:56,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:21:56,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:21:56,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:21:56,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:21:56,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:21:55" (1/1) ... [2024-12-05 23:21:56,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:21:56,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:21:56,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:21:56,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:21:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:21:56,119 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:21:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-05 23:21:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-12-05 23:21:56,285 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:21:56,287 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:21:56,454 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-05 23:21:56,455 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:21:56,495 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:21:56,495 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:21:56,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:56 BoogieIcfgContainer [2024-12-05 23:21:56,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:21:56,496 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:21:56,497 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:21:56,508 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:21:56,508 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:56" (1/1) ... [2024-12-05 23:21:56,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:21:56,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:21:56,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:21:56,567 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:21:56,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:21:56,570 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:21:56,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:21:56,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:21:56,573 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:21:56,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:21:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:56,837 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:21:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:57,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:57,070 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:21:57,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:21:57,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:21:57,126 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:21:57,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:21:57 ImpRootNode [2024-12-05 23:21:57,154 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:21:57,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:21:57,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:21:57,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:21:57,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:21:56" (3/4) ... [2024-12-05 23:21:57,159 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:21:57,160 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:21:57,161 INFO L158 Benchmark]: Toolchain (without parser) took 2439.00ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.8MB in the beginning and 100.7MB in the end (delta: -33.8MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-12-05 23:21:57,161 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:57,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1239.65ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.3MB in the end (delta: 4.3MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-05 23:21:57,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.72ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:57,162 INFO L158 Benchmark]: Boogie Preprocessor took 36.63ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 57.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:57,163 INFO L158 Benchmark]: RCFGBuilder took 441.58ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 40.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:21:57,164 INFO L158 Benchmark]: CodeCheck took 657.78ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 40.6MB in the beginning and 100.7MB in the end (delta: -60.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:57,164 INFO L158 Benchmark]: Witness Printer took 4.72ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 100.7MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:21:57,167 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: 0.6s, 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: 1580]: 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); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, 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) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1239.65ms. Allocated memory is still 92.3MB. Free memory was 66.6MB in the beginning and 62.3MB in the end (delta: 4.3MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.72ms. Allocated memory is still 92.3MB. Free memory was 62.3MB in the beginning and 59.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.63ms. Allocated memory is still 92.3MB. Free memory was 59.7MB in the beginning and 57.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.58ms. Allocated memory is still 92.3MB. Free memory was 57.9MB in the beginning and 40.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 657.78ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 40.6MB in the beginning and 100.7MB in the end (delta: -60.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.72ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 100.7MB 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 [2024-12-05 23:21:57,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9782ebf0-60e5-47b6-9276-4001331082f1/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