./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm --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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:23:24,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:23:24,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 23:23:24,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:23:24,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:23:24,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:23:24,885 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:23:24,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:23:24,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:23:24,887 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:23:24,887 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:23:24,888 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:23:24,889 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:23:24,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:23:24,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:23:24,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:23:24,890 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:23:24,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:23:24,890 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_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm 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 -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2024-11-13 23:23:25,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:23:25,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:23:25,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:23:25,213 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:23:25,213 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:23:25,214 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i Unable to find full path for "g++" [2024-11-13 23:23:27,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:23:27,534 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:23:27,535 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-13 23:23:27,571 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/d0379df15/f2c03dcd18dc4bbdb32baa20a2a69b26/FLAGab9b75ae8 [2024-11-13 23:23:27,688 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/d0379df15/f2c03dcd18dc4bbdb32baa20a2a69b26 [2024-11-13 23:23:27,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:23:27,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:23:27,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:23:27,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:23:27,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:23:27,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:23:27" (1/1) ... [2024-11-13 23:23:27,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bce53ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:27, skipping insertion in model container [2024-11-13 23:23:27,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:23:27" (1/1) ... [2024-11-13 23:23:27,778 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:23:28,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:23:28,736 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:23:28,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:23:29,008 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:23:29,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29 WrapperNode [2024-11-13 23:23:29,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:23:29,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:23:29,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:23:29,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:23:29,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,050 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,081 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-13 23:23:29,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:23:29,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:23:29,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:23:29,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:23:29,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:23:29,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:23:29,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:23:29,107 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:23:29,108 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:23:29,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:23:29,151 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:23:29,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:23:29,183 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:23:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:23:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:23:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:23:29,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:23:29,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:23:29,359 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:23:29,361 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:23:29,530 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 23:23:29,530 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:23:29,600 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:23:29,601 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:23:29,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:29 BoogieIcfgContainer [2024-11-13 23:23:29,601 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:23:29,602 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:23:29,603 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:23:29,615 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:23:29,615 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:29" (1/1) ... [2024-11-13 23:23:29,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:23:29,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:23:29,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:23:29,711 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:23:29,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:23:29,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:23:29,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:23:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:29,882 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:23:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:30,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:30,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:23:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:30,058 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:23:30,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:23:30 ImpRootNode [2024-11-13 23:23:30,097 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:23:30,098 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:23:30,098 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:23:30,098 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:23:30,099 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:29" (3/4) ... [2024-11-13 23:23:30,102 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:23:30,103 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:23:30,104 INFO L158 Benchmark]: Toolchain (without parser) took 2410.31ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 41.6MB in the end (delta: 48.2MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2024-11-13 23:23:30,104 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:30,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1314.91ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 79.9MB in the end (delta: 9.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-13 23:23:30,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.51ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 77.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:30,106 INFO L158 Benchmark]: Boogie Preprocessor took 22.71ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:30,106 INFO L158 Benchmark]: RCFGBuilder took 494.81ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 61.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:23:30,107 INFO L158 Benchmark]: CodeCheck took 495.23ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 42.2MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:23:30,107 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 117.4MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:30,110 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] --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 0.31ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1314.91ms. Allocated memory is still 117.4MB. Free memory was 89.7MB in the beginning and 79.9MB in the end (delta: 9.8MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.51ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 77.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.71ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 76.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 494.81ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 61.4MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 495.23ms. Allocated memory is still 117.4MB. Free memory was 61.4MB in the beginning and 42.2MB in the end (delta: 19.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 117.4MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:23:30,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm --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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:23:32,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:23:32,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 23:23:32,938 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:23:32,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:23:32,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:23:32,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:23:32,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:23:32,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:23:32,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:23:32,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:23:32,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:23:32,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:23:32,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:23:32,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:23:32,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:23:32,944 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:23:32,944 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:23:32,945 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:23:32,945 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:23:32,945 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:23:32,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:23:32,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:23:32,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:23:32,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:23:32,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:23:32,946 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:23:32,946 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:23:32,946 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:23:32,947 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_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm 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 -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2024-11-13 23:23:33,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:23:33,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:23:33,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:23:33,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:23:33,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:23:33,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i Unable to find full path for "g++" [2024-11-13 23:23:35,202 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:23:35,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:23:35,667 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-13 23:23:35,702 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/0c70092e1/389bb5d5690a47c2a8e242a619bb8918/FLAGf63e8e7ce [2024-11-13 23:23:35,726 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/data/0c70092e1/389bb5d5690a47c2a8e242a619bb8918 [2024-11-13 23:23:35,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:23:35,730 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:23:35,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:23:35,732 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:23:35,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:23:35,738 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:23:35" (1/1) ... [2024-11-13 23:23:35,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b625c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:35, skipping insertion in model container [2024-11-13 23:23:35,741 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:23:35" (1/1) ... [2024-11-13 23:23:35,818 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:23:36,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:23:36,778 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:23:36,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:23:37,084 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:23:37,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37 WrapperNode [2024-11-13 23:23:37,085 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:23:37,086 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:23:37,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:23:37,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:23:37,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,152 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 23:23:37,155 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:23:37,155 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:23:37,155 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:23:37,155 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:23:37,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,167 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,167 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,178 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:23:37,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:23:37,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:23:37,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:23:37,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:23:37,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:23:37,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:23:37,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:23:37,247 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:23:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:23:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:23:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:23:37,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:23:37,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:23:37,398 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:23:37,400 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:23:37,547 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 23:23:37,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:23:37,601 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:23:37,601 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:23:37,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:37 BoogieIcfgContainer [2024-11-13 23:23:37,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:23:37,615 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:23:37,616 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:23:37,628 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:23:37,628 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:37" (1/1) ... [2024-11-13 23:23:37,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:23:37,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:23:37,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:23:37,686 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:23:37,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:23:37,691 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:23:37,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:23:37,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:23:37,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:23:37,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:23:37,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:37,926 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:23:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:38,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:23:38,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:23:38,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:23:38,149 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:23:38,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:23:38 ImpRootNode [2024-11-13 23:23:38,188 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:23:38,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:23:38,189 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:23:38,190 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:23:38,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:23:37" (3/4) ... [2024-11-13 23:23:38,195 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:23:38,196 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:23:38,197 INFO L158 Benchmark]: Toolchain (without parser) took 2466.25ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 33.9MB in the end (delta: 23.2MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2024-11-13 23:23:38,197 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:38,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1353.59ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.7MB in the end (delta: 6.2MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-13 23:23:38,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.53ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 47.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:38,198 INFO L158 Benchmark]: Boogie Preprocessor took 27.60ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:38,198 INFO L158 Benchmark]: RCFGBuilder took 418.27ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 29.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:23:38,201 INFO L158 Benchmark]: CodeCheck took 573.19ms. Allocated memory is still 83.9MB. Free memory was 52.7MB in the beginning and 34.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:23:38,202 INFO L158 Benchmark]: Witness Printer took 6.67ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 33.9MB in the end (delta: 430.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:23:38,204 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, 16 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 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] --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 0.40ms. Allocated memory is still 83.9MB. Free memory was 64.3MB in the beginning and 64.3MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1353.59ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 50.7MB in the end (delta: 6.2MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.53ms. Allocated memory is still 83.9MB. Free memory was 50.7MB in the beginning and 47.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.60ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 418.27ms. Allocated memory is still 83.9MB. Free memory was 46.0MB in the beginning and 29.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 573.19ms. Allocated memory is still 83.9MB. Free memory was 52.7MB in the beginning and 34.4MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.67ms. Allocated memory is still 83.9MB. Free memory was 34.4MB in the beginning and 33.9MB in the end (delta: 430.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:23:38,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35bf717a-bba6-4e28-ba39-6be279a9e2c1/bin/ukojak-verify-EEHR8qb7sm/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