./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_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_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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_1703faaa-b04f-4df1-bef5-5da6c191188f/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 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:34,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:34,940 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 20:19:34,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:19:34,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:19:34,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:34,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:34,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:34,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:34,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:34,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:34,989 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:34,989 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:34,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:34,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:34,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:34,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:34,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:34,990 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:19:34,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:19:34,990 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_1703faaa-b04f-4df1-bef5-5da6c191188f/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 -> 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 [2024-11-13 20:19:35,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:35,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:35,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:35,346 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:35,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:35,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i Unable to find full path for "g++" [2024-11-13 20:19:37,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:37,818 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:37,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-13 20:19:37,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/b09910dfe/1b01899db96a49afb9302ef99b9ec203/FLAGfff7b82ce [2024-11-13 20:19:37,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/b09910dfe/1b01899db96a49afb9302ef99b9ec203 [2024-11-13 20:19:37,887 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:37,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:37,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:37,894 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:37,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:37,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,905 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c63f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:37, skipping insertion in model container [2024-11-13 20:19:37,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:37" (1/1) ... [2024-11-13 20:19:37,983 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:39,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:39,398 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:39,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:39,691 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:39,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39 WrapperNode [2024-11-13 20:19:39,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:39,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:39,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:39,693 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:39,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,750 INFO L138 Inliner]: procedures = 498, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2024-11-13 20:19:39,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:39,753 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:39,753 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:39,753 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:39,763 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,779 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,784 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:39,789 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:39,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:39,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:39,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:39" (1/1) ... [2024-11-13 20:19:39,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:39,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:39,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:39,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:19:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:19:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:19:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:19:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:39,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 20:19:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:19:39,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:19:40,135 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:40,136 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:40,313 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:40,313 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:40,371 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:40,372 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:19:40,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:40 BoogieIcfgContainer [2024-11-13 20:19:40,372 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:40,373 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:40,373 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:40,386 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:40,387 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:40" (1/1) ... [2024-11-13 20:19:40,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:40,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:19:40,484 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:19:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:19:40,490 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:40,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:40,721 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:40,979 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:41,041 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:19:41,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:41 ImpRootNode [2024-11-13 20:19:41,078 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:41,079 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:41,079 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:41,079 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:41,082 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:40" (3/4) ... [2024-11-13 20:19:41,085 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:19:41,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:41,087 INFO L158 Benchmark]: Toolchain (without parser) took 3196.90ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 81.9MB in the end (delta: 32.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:41,087 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:41,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1798.61ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 55.6MB in the end (delta: 58.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 20:19:41,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.07ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:41,089 INFO L158 Benchmark]: Boogie Preprocessor took 31.73ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 51.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:41,089 INFO L158 Benchmark]: RCFGBuilder took 582.75ms. Allocated memory is still 142.6MB. Free memory was 51.7MB in the beginning and 105.7MB in the end (delta: -54.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-13 20:19:41,094 INFO L158 Benchmark]: CodeCheck took 705.01ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 81.9MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:41,095 INFO L158 Benchmark]: Witness Printer took 7.18ms. Allocated memory is still 142.6MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:41,100 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1558. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={17068:0}, dataPtr2={17068:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] --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 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1798.61ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 55.6MB in the end (delta: 58.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.07ms. Allocated memory is still 142.6MB. Free memory was 55.6MB in the beginning and 53.1MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.73ms. Allocated memory is still 142.6MB. Free memory was 53.1MB in the beginning and 51.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 582.75ms. Allocated memory is still 142.6MB. Free memory was 51.7MB in the beginning and 105.7MB in the end (delta: -54.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * CodeCheck took 705.01ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 81.9MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.18ms. Allocated memory is still 142.6MB. Free memory is still 81.9MB. 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 20:19:41,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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_1703faaa-b04f-4df1-bef5-5da6c191188f/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 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:44,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:44,553 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 20:19:44,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:44,644 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:44,645 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:44,646 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:44,646 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:44,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:44,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:44,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:44,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:44,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:44,650 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:44,650 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:44,650 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:44,650 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:44,650 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 20:19:44,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:44,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:44,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:44,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:44,651 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:44,652 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 20:19:44,652 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:44,652 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 20:19:44,652 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_1703faaa-b04f-4df1-bef5-5da6c191188f/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 -> 6a5d466dc215f8ed26ed8263d386e990454787d0ed2acd2f0781ac9337fda305 [2024-11-13 20:19:45,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:45,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:45,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:45,042 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:45,043 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:45,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i Unable to find full path for "g++" [2024-11-13 20:19:47,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:48,083 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:48,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_bad.i [2024-11-13 20:19:48,123 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/7943c7869/7d9e273a172e4515af19fb71bc3121d4/FLAG219b8bafe [2024-11-13 20:19:48,150 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/data/7943c7869/7d9e273a172e4515af19fb71bc3121d4 [2024-11-13 20:19:48,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:48,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:48,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:48,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:48,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:48,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:48" (1/1) ... [2024-11-13 20:19:48,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f867cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:48, skipping insertion in model container [2024-11-13 20:19:48,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:48" (1/1) ... [2024-11-13 20:19:48,257 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:49,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:49,485 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:49,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:49,925 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:49,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49 WrapperNode [2024-11-13 20:19:49,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:49,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:49,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:49,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:49,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:49,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,030 INFO L138 Inliner]: procedures = 503, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2024-11-13 20:19:50,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:50,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:50,031 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:50,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:50,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,054 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,079 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,083 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,092 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:50,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:50,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:50,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:50,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:49" (1/1) ... [2024-11-13 20:19:50,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:50,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:50,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:50,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:50,199 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 20:19:50,200 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 20:19:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:19:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 20:19:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:50,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:50,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-13 20:19:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 20:19:50,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-13 20:19:50,370 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:50,372 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:50,573 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:50,573 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:50,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:50,655 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:19:50,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:50 BoogieIcfgContainer [2024-11-13 20:19:50,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:50,657 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:50,657 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:50,667 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:50,667 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:50" (1/1) ... [2024-11-13 20:19:50,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:50,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 20:19:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 20:19:50,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 20:19:50,742 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:50,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 20:19:50,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 20:19:50,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 20:19:50,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 20:19:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:51,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:51,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:51,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:51,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:51,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 20:19:51,435 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 20:19:51,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:51 ImpRootNode [2024-11-13 20:19:51,473 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:51,474 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:51,474 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:51,474 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:51,476 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:50" (3/4) ... [2024-11-13 20:19:51,478 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 20:19:51,479 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:51,481 INFO L158 Benchmark]: Toolchain (without parser) took 3325.90ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 88.5MB in the beginning and 160.5MB in the end (delta: -72.0MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,481 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.9MB in the end (delta: 944B). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1770.70ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 88.3MB in the beginning and 207.6MB in the end (delta: -119.3MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,485 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.39ms. Allocated memory is still 260.0MB. Free memory was 207.6MB in the beginning and 204.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,485 INFO L158 Benchmark]: Boogie Preprocessor took 71.71ms. Allocated memory is still 260.0MB. Free memory was 204.6MB in the beginning and 203.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,485 INFO L158 Benchmark]: RCFGBuilder took 552.10ms. Allocated memory is still 260.0MB. Free memory was 202.7MB in the beginning and 184.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,486 INFO L158 Benchmark]: CodeCheck took 816.71ms. Allocated memory is still 260.0MB. Free memory was 184.5MB in the beginning and 160.5MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 20:19:51,486 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 260.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:51,492 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1558. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={5:0}, dataPtr2={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] --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 0.44ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 83.9MB in the end (delta: 944B). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1770.70ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 88.3MB in the beginning and 207.6MB in the end (delta: -119.3MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.39ms. Allocated memory is still 260.0MB. Free memory was 207.6MB in the beginning and 204.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.71ms. Allocated memory is still 260.0MB. Free memory was 204.6MB in the beginning and 203.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 552.10ms. Allocated memory is still 260.0MB. Free memory was 202.7MB in the beginning and 184.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 816.71ms. Allocated memory is still 260.0MB. Free memory was 184.5MB in the beginning and 160.5MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 260.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 20:19:51,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1703faaa-b04f-4df1-bef5-5da6c191188f/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