./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_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_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3 --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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:43:08,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:43:08,751 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:43:08,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:43:08,762 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:43:08,799 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:43:08,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:43:08,801 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:43:08,801 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:43:08,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:43:08,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:43:08,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:43:08,803 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:43:08,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:43:08,804 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:43:08,805 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:43:08,805 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:43:08,805 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:43:08,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:43:08,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:43:08,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:43:08,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:43:08,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:43:08,806 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:43:08,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:43:08,806 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_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3 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 -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-25 02:43:09,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:43:09,089 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:43:09,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:43:09,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:43:09,095 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:43:09,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-25 02:43:12,070 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/076721aec/5584ec38656842efb3e0c9d0c6e0070c/FLAGb2e4bec27 [2024-11-25 02:43:12,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:43:12,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-25 02:43:12,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/076721aec/5584ec38656842efb3e0c9d0c6e0070c/FLAGb2e4bec27 [2024-11-25 02:43:12,670 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/076721aec/5584ec38656842efb3e0c9d0c6e0070c [2024-11-25 02:43:12,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:43:12,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:43:12,678 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:43:12,679 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:43:12,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:43:12,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:43:12" (1/1) ... [2024-11-25 02:43:12,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5449e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:12, skipping insertion in model container [2024-11-25 02:43:12,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:43:12" (1/1) ... [2024-11-25 02:43:12,746 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:43:13,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:43:13,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:43:13,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:43:13,891 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:43:13,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13 WrapperNode [2024-11-25 02:43:13,892 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:43:13,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:43:13,893 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:43:13,893 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:43:13,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,940 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-25 02:43:13,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:43:13,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:43:13,942 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:43:13,942 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:43:13,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,950 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,953 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,966 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:43:13,974 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:43:13,974 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:43:13,974 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:43:13,975 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:13" (1/1) ... [2024-11-25 02:43:13,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:43:14,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:43:14,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:43:14,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:43:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:43:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:43:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:43:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:43:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:43:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:43:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:43:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:43:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:43:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:43:14,219 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:43:14,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:43:14,350 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-25 02:43:14,350 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:43:14,383 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:43:14,384 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:43:14,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:14 BoogieIcfgContainer [2024-11-25 02:43:14,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:43:14,385 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:43:14,385 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:43:14,394 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:43:14,394 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:14" (1/1) ... [2024-11-25 02:43:14,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:43:14,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:43:14,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:43:14,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:43:14,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:43:14,452 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:43:14,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:43:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:14,585 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:43:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:14,713 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:43:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:14,752 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:43:14,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:43:14 ImpRootNode [2024-11-25 02:43:14,775 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:43:14,775 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:43:14,775 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:43:14,776 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:43:14,776 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:14" (3/4) ... [2024-11-25 02:43:14,778 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:43:14,779 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:43:14,780 INFO L158 Benchmark]: Toolchain (without parser) took 2104.08ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 67.6MB in the end (delta: 36.2MB). Peak memory consumption was 40.7MB. Max. memory is 16.1GB. [2024-11-25 02:43:14,780 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 167.8MB. Free memory was 105.2MB in the beginning and 105.0MB in the end (delta: 191.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:14,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1213.67ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 43.2MB in the end (delta: 60.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-25 02:43:14,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 142.6MB. Free memory was 43.2MB in the beginning and 40.4MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:43:14,781 INFO L158 Benchmark]: Boogie Preprocessor took 31.52ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:14,782 INFO L158 Benchmark]: RCFGBuilder took 410.51ms. Allocated memory is still 142.6MB. Free memory was 39.4MB in the beginning and 90.8MB in the end (delta: -51.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-11-25 02:43:14,782 INFO L158 Benchmark]: CodeCheck took 390.09ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 68.3MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:43:14,782 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 67.6MB in the end (delta: 672.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:14,785 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, 0.1s 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={7580:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --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 0.35ms. Allocated memory is still 167.8MB. Free memory was 105.2MB in the beginning and 105.0MB in the end (delta: 191.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1213.67ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 43.2MB in the end (delta: 60.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 142.6MB. Free memory was 43.2MB in the beginning and 40.4MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.52ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 410.51ms. Allocated memory is still 142.6MB. Free memory was 39.4MB in the beginning and 90.8MB in the end (delta: -51.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * CodeCheck took 390.09ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 68.3MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 68.3MB in the beginning and 67.6MB in the end (delta: 672.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:43:14,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/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_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3 --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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:43:17,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:43:17,518 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:43:17,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:43:17,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:43:17,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:43:17,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:43:17,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:43:17,551 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:43:17,552 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:43:17,552 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:43:17,552 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:43:17,552 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:43:17,552 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:43:17,552 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:43:17,553 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:43:17,553 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:43:17,553 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:43:17,553 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:43:17,553 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:43:17,553 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:43:17,553 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:43:17,554 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:43:17,554 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:43:17,554 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_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3 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 -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-25 02:43:17,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:43:17,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:43:17,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:43:17,892 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:43:17,892 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:43:17,893 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-25 02:43:20,873 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/778de1a36/ebd7c14e65d54943ba17081fc54febce/FLAG3c5630522 [2024-11-25 02:43:21,237 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:43:21,238 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-25 02:43:21,265 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/778de1a36/ebd7c14e65d54943ba17081fc54febce/FLAG3c5630522 [2024-11-25 02:43:21,454 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/data/778de1a36/ebd7c14e65d54943ba17081fc54febce [2024-11-25 02:43:21,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:43:21,458 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:43:21,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:43:21,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:43:21,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:43:21,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:43:21" (1/1) ... [2024-11-25 02:43:21,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5fbd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:21, skipping insertion in model container [2024-11-25 02:43:21,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:43:21" (1/1) ... [2024-11-25 02:43:21,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:43:22,539 WARN L1063 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-25 02:43:22,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:43:22,553 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:43:22,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:43:22,831 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:43:22,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22 WrapperNode [2024-11-25 02:43:22,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:43:22,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:43:22,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:43:22,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:43:22,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,878 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-25 02:43:22,879 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:43:22,879 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:43:22,880 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:43:22,880 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:43:22,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,890 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:43:22,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:43:22,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:43:22,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:43:22,908 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:43:22" (1/1) ... [2024-11-25 02:43:22,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:43:22,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:43:22,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:43:22,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:43:22,978 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:43:22,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:43:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 02:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:43:22,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 02:43:23,132 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:43:23,134 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:43:23,300 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 02:43:23,300 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:43:23,371 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:43:23,372 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:43:23,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:23 BoogieIcfgContainer [2024-11-25 02:43:23,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:43:23,373 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:43:23,373 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:43:23,382 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:43:23,382 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:23" (1/1) ... [2024-11-25 02:43:23,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:43:23,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:43:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:43:23,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:43:23,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:43:23,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:43:23,469 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:43:23,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:43:23,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:43:23,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:43:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:23,746 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:43:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:23,972 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:43:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:43:24,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:43:24,061 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:43:24,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:43:24 ImpRootNode [2024-11-25 02:43:24,093 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:43:24,094 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:43:24,094 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:43:24,094 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:43:24,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:43:23" (3/4) ... [2024-11-25 02:43:24,099 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:43:24,101 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:43:24,104 INFO L158 Benchmark]: Toolchain (without parser) took 2643.74ms. Allocated memory is still 109.1MB. Free memory was 81.3MB in the beginning and 55.5MB in the end (delta: 25.8MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-25 02:43:24,104 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:24,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.59ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 61.5MB in the end (delta: 19.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. [2024-11-25 02:43:24,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.77ms. Allocated memory is still 109.1MB. Free memory was 61.5MB in the beginning and 58.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:24,105 INFO L158 Benchmark]: Boogie Preprocessor took 27.24ms. Allocated memory is still 109.1MB. Free memory was 58.4MB in the beginning and 56.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:24,106 INFO L158 Benchmark]: RCFGBuilder took 465.26ms. Allocated memory is still 109.1MB. Free memory was 56.5MB in the beginning and 39.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:43:24,106 INFO L158 Benchmark]: CodeCheck took 719.72ms. Allocated memory is still 109.1MB. Free memory was 39.2MB in the beginning and 55.5MB in the end (delta: -16.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:24,109 INFO L158 Benchmark]: Witness Printer took 6.75ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 3.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:43:24,111 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, 0.1s 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --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 0.25ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.59ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 61.5MB in the end (delta: 19.5MB). Peak memory consumption was 58.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.77ms. Allocated memory is still 109.1MB. Free memory was 61.5MB in the beginning and 58.4MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.24ms. Allocated memory is still 109.1MB. Free memory was 58.4MB in the beginning and 56.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 465.26ms. Allocated memory is still 109.1MB. Free memory was 56.5MB in the beginning and 39.2MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 719.72ms. Allocated memory is still 109.1MB. Free memory was 39.2MB in the beginning and 55.5MB in the end (delta: -16.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.75ms. Allocated memory is still 109.1MB. Free memory was 55.5MB in the beginning and 55.5MB in the end (delta: 3.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:43:24,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2f6052-a48b-447d-b8af-0009166ac645/bin/ukojak-verify-ENZ3QT5qd3/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