./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:24:45,330 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:24:45,401 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:24:45,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:24:45,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:24:45,437 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:24:45,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:24:45,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:24:45,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:24:45,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:24:45,439 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:24:45,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:24:45,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:24:45,440 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:24:45,440 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:24:45,443 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:24:45,443 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:24:45,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:24:45,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:24:45,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:24:45,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:24:45,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:24:45,444 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:24:45,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:24:45,445 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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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 -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-25 04:24:45,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:24:45,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:24:45,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:24:45,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:24:45,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:24:45,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-25 04:24:49,124 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/6de64236d/9bd1c0c41da9479aa93db926e469cff1/FLAGccca95ba9 [2024-11-25 04:24:49,612 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:24:49,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-25 04:24:49,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/6de64236d/9bd1c0c41da9479aa93db926e469cff1/FLAGccca95ba9 [2024-11-25 04:24:49,693 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/6de64236d/9bd1c0c41da9479aa93db926e469cff1 [2024-11-25 04:24:49,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:24:49,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:24:49,701 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:24:49,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:24:49,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:24:49,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:24:49" (1/1) ... [2024-11-25 04:24:49,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6738dc2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:49, skipping insertion in model container [2024-11-25 04:24:49,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:24:49" (1/1) ... [2024-11-25 04:24:49,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:24:50,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:24:50,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:24:51,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:24:51,210 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:24:51,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51 WrapperNode [2024-11-25 04:24:51,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:24:51,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:24:51,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:24:51,212 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:24:51,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,264 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 66 [2024-11-25 04:24:51,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:24:51,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:24:51,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:24:51,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:24:51,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,282 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,283 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,285 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,286 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:24:51,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:24:51,291 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:24:51,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:24:51,292 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:24:51,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:24:51,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:24:51,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:24:51,380 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:24:51,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:24:51,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:24:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:24:51,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:24:51,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:24:51,550 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:24:51,553 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:24:51,726 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-25 04:24:51,726 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:24:51,794 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:24:51,798 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:24:51,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:24:51 BoogieIcfgContainer [2024-11-25 04:24:51,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:24:51,800 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:24:51,800 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:24:51,814 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:24:51,814 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:24:51" (1/1) ... [2024-11-25 04:24:51,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:24:51,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:24:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:24:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:24:51,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:24:51,901 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:24:51,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:24:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:24:52,078 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:24:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:24:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:24:52,201 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:24:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:24:52,247 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:24:52,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:24:52 ImpRootNode [2024-11-25 04:24:52,280 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:24:52,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:24:52,281 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:24:52,281 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:24:52,282 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:24:51" (3/4) ... [2024-11-25 04:24:52,284 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:24:52,285 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:24:52,287 INFO L158 Benchmark]: Toolchain (without parser) took 2588.72ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 43.5MB in the end (delta: 46.1MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2024-11-25 04:24:52,287 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:24:52,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.89ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 80.8MB in the end (delta: 8.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-11-25 04:24:52,288 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.64ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 78.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:24:52,289 INFO L158 Benchmark]: Boogie Preprocessor took 24.39ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:24:52,289 INFO L158 Benchmark]: RCFGBuilder took 508.89ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 62.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:24:52,290 INFO L158 Benchmark]: CodeCheck took 479.73ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 43.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:24:52,290 INFO L158 Benchmark]: Witness Printer took 5.15ms. Allocated memory is still 117.4MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:24:52,295 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, 0.1s 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: 1592]: 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_sub_54_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=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_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.89ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 80.8MB in the end (delta: 8.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.64ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 78.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.39ms. Allocated memory is still 117.4MB. Free memory was 78.4MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 508.89ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 62.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 479.73ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 43.5MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.15ms. Allocated memory is still 117.4MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:24:52,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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 d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:24:55,334 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:24:55,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:24:55,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:24:55,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:24:55,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:24:55,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:24:55,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:24:55,521 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:24:55,521 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:24:55,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:24:55,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:24:55,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:24:55,524 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:24:55,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:24:55,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:24:55,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:24:55,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:24:55,525 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:24:55,525 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:24:55,525 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:24:55,525 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_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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 -> d64d2712d492162e95e1fa19a934e4cdeb5c33b78ef226bf74551bdc315f4229 [2024-11-25 04:24:55,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:24:55,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:24:55,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:24:55,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:24:55,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:24:55,927 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-25 04:24:59,007 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/35bcb02d7/12cbb71692e14bbea3a21f436d1da8fb/FLAG76719f4c6 [2024-11-25 04:24:59,475 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:24:59,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_54_bad.i [2024-11-25 04:24:59,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/35bcb02d7/12cbb71692e14bbea3a21f436d1da8fb/FLAG76719f4c6 [2024-11-25 04:24:59,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/data/35bcb02d7/12cbb71692e14bbea3a21f436d1da8fb [2024-11-25 04:24:59,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:24:59,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:24:59,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:24:59,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:24:59,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:24:59,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:24:59" (1/1) ... [2024-11-25 04:24:59,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37924d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:24:59, skipping insertion in model container [2024-11-25 04:24:59,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:24:59" (1/1) ... [2024-11-25 04:24:59,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:25:01,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:25:01,045 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:25:01,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:25:01,397 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:25:01,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01 WrapperNode [2024-11-25 04:25:01,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:25:01,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:25:01,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:25:01,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:25:01,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,465 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2024-11-25 04:25:01,465 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:25:01,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:25:01,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:25:01,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:25:01,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,484 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,492 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,499 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,502 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:25:01,503 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:25:01,503 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:25:01,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:25:01,504 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:25:01" (1/1) ... [2024-11-25 04:25:01,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:25:01,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:25:01,555 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:25:01,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:25:01,594 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:25:01,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:25:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:25:01,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:25:01,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:25:01,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:25:01,793 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:25:01,795 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:25:01,962 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-25 04:25:01,962 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:25:02,017 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:25:02,017 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:25:02,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:25:02 BoogieIcfgContainer [2024-11-25 04:25:02,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:25:02,019 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:25:02,019 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:25:02,044 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:25:02,044 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:25:02" (1/1) ... [2024-11-25 04:25:02,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:25:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:25:02,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:25:02,116 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:25:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:25:02,121 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:25:02,123 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:25:02,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:25:02,127 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:25:02,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:25:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:25:02,410 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:25:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:25:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:25:02,563 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:25:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:25:02,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:25:02,605 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:25:02,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:25:02 ImpRootNode [2024-11-25 04:25:02,654 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:25:02,655 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:25:02,656 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:25:02,656 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:25:02,658 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:25:02" (3/4) ... [2024-11-25 04:25:02,661 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:25:02,662 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:25:02,663 INFO L158 Benchmark]: Toolchain (without parser) took 3101.74ms. Allocated memory is still 83.9MB. Free memory was 56.5MB in the beginning and 34.5MB in the end (delta: 22.0MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2024-11-25 04:25:02,664 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:25:02,664 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1835.60ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 50.6MB in the end (delta: 5.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-25 04:25:02,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.18ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:25:02,665 INFO L158 Benchmark]: Boogie Preprocessor took 33.70ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:25:02,666 INFO L158 Benchmark]: RCFGBuilder took 515.33ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 29.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:25:02,666 INFO L158 Benchmark]: CodeCheck took 634.95ms. Allocated memory is still 83.9MB. Free memory was 29.3MB in the beginning and 34.9MB in the end (delta: -5.6MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2024-11-25 04:25:02,667 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 83.9MB. Free memory was 34.9MB in the beginning and 34.5MB in the end (delta: 425.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:25:02,669 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: 0.5s, 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: 1592]: 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_sub_54_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=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_sub_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_sub_54e_badSink(data) [L1592] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 35.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1835.60ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 50.6MB in the end (delta: 5.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.18ms. Allocated memory is still 83.9MB. Free memory was 50.6MB in the beginning and 47.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.70ms. Allocated memory is still 83.9MB. Free memory was 47.8MB in the beginning and 46.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 515.33ms. Allocated memory is still 83.9MB. Free memory was 45.9MB in the beginning and 29.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 634.95ms. Allocated memory is still 83.9MB. Free memory was 29.3MB in the beginning and 34.9MB in the end (delta: -5.6MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 83.9MB. Free memory was 34.9MB in the beginning and 34.5MB in the end (delta: 425.2kB). 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 04:25:02,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5c575cd-0708-4e65-a4b4-cc48ebcab7f1/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