./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_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_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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_e0b151c7-a507-4581-a707-ec4b7d697dfc/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 cb1a9f52359f2ddeb91e8f6c10211aed7069a453a7399847a9aff033a2bb2ec6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:56:22,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:56:22,646 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 16:56:22,657 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:56:22,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:56:22,707 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:56:22,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:56:22,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:56:22,711 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:56:22,711 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:56:22,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:56:22,711 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:56:22,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:56:22,711 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:56:22,711 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:56:22,712 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:56:22,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:56:22,715 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:56:22,715 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:56:22,715 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:56:22,716 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:56:22,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:22,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:56:22,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:56:22,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:56:22,716 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:56:22,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:56:22,716 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_e0b151c7-a507-4581-a707-ec4b7d697dfc/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 -> cb1a9f52359f2ddeb91e8f6c10211aed7069a453a7399847a9aff033a2bb2ec6 [2024-11-13 16:56:23,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:56:23,135 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:56:23,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:56:23,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:56:23,145 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:56:23,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i Unable to find full path for "g++" [2024-11-13 16:56:25,546 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:56:26,083 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:56:26,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i [2024-11-13 16:56:26,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/73f1e6414/cb52812b94ac46f7bc65e22c57b25c2f/FLAGefac6d2ff [2024-11-13 16:56:26,145 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/73f1e6414/cb52812b94ac46f7bc65e22c57b25c2f [2024-11-13 16:56:26,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:56:26,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:56:26,151 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:26,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:56:26,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:56:26,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:26" (1/1) ... [2024-11-13 16:56:26,161 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43daa4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:26, skipping insertion in model container [2024-11-13 16:56:26,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:26" (1/1) ... [2024-11-13 16:56:26,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:56:27,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:27,335 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:56:27,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:27,629 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:56:27,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27 WrapperNode [2024-11-13 16:56:27,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:27,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:27,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:56:27,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:56:27,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,707 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-13 16:56:27,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:27,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:56:27,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:56:27,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:56:27,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,735 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:56:27,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:56:27,736 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:56:27,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:56:27,737 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:27" (1/1) ... [2024-11-13 16:56:27,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:56:27,795 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:56:27,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:56:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:56:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:56:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:56:27,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:56:27,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:56:27,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:56:28,049 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:56:28,052 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:56:28,250 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-13 16:56:28,250 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:56:28,320 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:56:28,326 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:56:28,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:28 BoogieIcfgContainer [2024-11-13 16:56:28,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:56:28,328 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:56:28,328 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:56:28,339 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:56:28,339 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:28" (1/1) ... [2024-11-13 16:56:28,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:56:28,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:28,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 16:56:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 16:56:28,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:56:28,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:28,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:56:28,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:28,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 22 transitions. [2024-11-13 16:56:28,799 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-11-13 16:56:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:56:28,800 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:28,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:56:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:28,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:29,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:29,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:29,085 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 16:56:29,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:56:29 ImpRootNode [2024-11-13 16:56:29,135 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:56:29,137 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:56:29,137 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:56:29,138 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:56:29,139 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:28" (3/4) ... [2024-11-13 16:56:29,141 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:56:29,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:56:29,146 INFO L158 Benchmark]: Toolchain (without parser) took 2994.32ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 36.0MB in the end (delta: 53.1MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-13 16:56:29,146 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:29,147 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1479.67ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 80.2MB in the end (delta: 8.7MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-13 16:56:29,147 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.12ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:29,148 INFO L158 Benchmark]: Boogie Preprocessor took 26.68ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:29,148 INFO L158 Benchmark]: RCFGBuilder took 591.52ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 61.9MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:29,150 INFO L158 Benchmark]: CodeCheck took 807.80ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 36.0MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 16:56:29,151 INFO L158 Benchmark]: Witness Printer took 6.19ms. Allocated memory is still 117.4MB. Free memory is still 36.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:29,153 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_13_bad() [L1550] int data; [L1551] data = 0 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 GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 [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 1.36ms. Allocated memory is still 117.4MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1479.67ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 80.2MB in the end (delta: 8.7MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.12ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 77.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.68ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 76.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 591.52ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 61.9MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 807.80ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 36.0MB in the end (delta: 25.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.19ms. Allocated memory is still 117.4MB. Free memory is still 36.0MB. 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 16:56:29,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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_e0b151c7-a507-4581-a707-ec4b7d697dfc/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 cb1a9f52359f2ddeb91e8f6c10211aed7069a453a7399847a9aff033a2bb2ec6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:56:32,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:56:32,765 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 16:56:32,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:56:32,814 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:56:32,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:56:32,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:56:32,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:56:32,815 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:56:32,815 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:56:32,816 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:56:32,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:56:32,817 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:56:32,818 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:56:32,818 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:32,819 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 16:56:32,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:56:32,819 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:32,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:56:32,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:56:32,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:56:32,820 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 16:56:32,820 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:32,820 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 16:56:32,820 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_e0b151c7-a507-4581-a707-ec4b7d697dfc/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 -> cb1a9f52359f2ddeb91e8f6c10211aed7069a453a7399847a9aff033a2bb2ec6 [2024-11-13 16:56:33,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:56:33,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:56:33,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:56:33,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:56:33,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:56:33,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i Unable to find full path for "g++" [2024-11-13 16:56:35,463 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:56:35,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:56:35,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_13_bad.i [2024-11-13 16:56:35,905 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/951092edc/d8f3c25177d64bda8e2a15f403cdab73/FLAG93b816d5e [2024-11-13 16:56:35,930 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/data/951092edc/d8f3c25177d64bda8e2a15f403cdab73 [2024-11-13 16:56:35,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:56:35,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:56:35,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:35,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:56:35,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:56:35,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:35" (1/1) ... [2024-11-13 16:56:35,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@564af9eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:35, skipping insertion in model container [2024-11-13 16:56:35,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:56:35" (1/1) ... [2024-11-13 16:56:36,033 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:56:37,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:37,142 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:56:37,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:56:37,599 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:56:37,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37 WrapperNode [2024-11-13 16:56:37,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:56:37,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:37,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:56:37,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:56:37,618 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,664 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,703 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-13 16:56:37,705 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:56:37,706 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:56:37,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:56:37,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:56:37,715 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,744 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,754 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,755 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:56:37,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:56:37,766 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:56:37,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:56:37,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:56:37" (1/1) ... [2024-11-13 16:56:37,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:56:37,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:56:37,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:56:37,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:56:37,853 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 16:56:37,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 16:56:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 16:56:37,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:56:37,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:56:37,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:56:38,107 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:56:38,109 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:56:38,339 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-13 16:56:38,339 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:56:38,431 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:56:38,432 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:56:38,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:38 BoogieIcfgContainer [2024-11-13 16:56:38,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:56:38,434 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:56:38,434 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:56:38,457 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:56:38,458 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:38" (1/1) ... [2024-11-13 16:56:38,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:56:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:38,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-11-13 16:56:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-11-13 16:56:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:56:38,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:38,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:38,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:56:38,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:56:38,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 16:56:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:38,729 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 16:56:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:56:38,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:56:38,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:56:38,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:56:38,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 16:56:38,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:56:38,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 21 states and 27 transitions. [2024-11-13 16:56:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-13 16:56:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:56:38,942 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:56:38,943 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 16:56:38,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 16:56:38,947 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 16:56:38,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 16:56:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:39,192 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:39,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:39,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:56:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:56:39,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 16:56:39,431 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 16:56:39,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:56:39 ImpRootNode [2024-11-13 16:56:39,470 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:56:39,471 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:56:39,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:56:39,473 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:56:39,474 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:56:38" (3/4) ... [2024-11-13 16:56:39,480 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 16:56:39,481 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:56:39,482 INFO L158 Benchmark]: Toolchain (without parser) took 3546.03ms. Allocated memory is still 83.9MB. Free memory was 57.3MB in the beginning and 48.6MB in the end (delta: 8.7MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-13 16:56:39,486 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:39,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1663.00ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 49.8MB in the end (delta: 7.2MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. [2024-11-13 16:56:39,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.15ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:39,487 INFO L158 Benchmark]: Boogie Preprocessor took 57.17ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:39,487 INFO L158 Benchmark]: RCFGBuilder took 669.35ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 28.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:56:39,488 INFO L158 Benchmark]: CodeCheck took 1036.50ms. Allocated memory is still 83.9MB. Free memory was 28.8MB in the beginning and 49.0MB in the end (delta: -20.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-11-13 16:56:39,488 INFO L158 Benchmark]: Witness Printer took 10.10ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 48.6MB in the end (delta: 445.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:56:39,492 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1558, overapproximation of large string literal at line 1578, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_13_bad() [L1550] int data; [L1551] data = 0 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 GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 [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 0.46ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1663.00ms. Allocated memory is still 83.9MB. Free memory was 57.0MB in the beginning and 49.8MB in the end (delta: 7.2MB). Peak memory consumption was 59.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.15ms. Allocated memory is still 83.9MB. Free memory was 49.8MB in the beginning and 47.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.17ms. Allocated memory is still 83.9MB. Free memory was 47.0MB in the beginning and 45.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 669.35ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 28.8MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1036.50ms. Allocated memory is still 83.9MB. Free memory was 28.8MB in the beginning and 49.0MB in the end (delta: -20.3MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 10.10ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 48.6MB in the end (delta: 445.1kB). 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 16:56:39,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0b151c7-a507-4581-a707-ec4b7d697dfc/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