./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:13:42,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:13:42,586 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 23:13:42,593 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:13:42,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:13:42,630 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:13:42,630 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:13:42,631 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:13:42,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:13:42,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:13:42,631 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:13:42,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:13:42,632 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:13:42,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:13:42,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:13:42,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:13:42,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:13:42,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:13:42,634 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:13:42,634 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:13:42,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:13:42,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:13:42,635 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:13:42,635 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:13:42,635 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:13:42,636 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:13:42,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:42,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:13:42,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:13:42,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:13:42,636 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:13:42,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:13:42,637 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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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 -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-13 23:13:42,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:13:42,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:13:42,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:13:42,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:13:42,967 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:13:42,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i Unable to find full path for "g++" [2024-11-13 23:13:44,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:13:45,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:13:45,416 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-13 23:13:45,450 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/82ddb4bb0/45f1b0b6622041b6a94c4c2eb05a338b/FLAG493f44162 [2024-11-13 23:13:45,476 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/82ddb4bb0/45f1b0b6622041b6a94c4c2eb05a338b [2024-11-13 23:13:45,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:13:45,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:13:45,485 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:45,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:13:45,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:13:45,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:45" (1/1) ... [2024-11-13 23:13:45,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@734d9e46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:45, skipping insertion in model container [2024-11-13 23:13:45,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:45" (1/1) ... [2024-11-13 23:13:45,570 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:13:46,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:46,568 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:13:46,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:46,805 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:13:46,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46 WrapperNode [2024-11-13 23:13:46,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:46,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:46,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:13:46,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:13:46,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,851 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-13 23:13:46,852 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:46,852 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:13:46,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:13:46,853 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:13:46,860 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,860 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,868 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,870 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,871 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,875 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:13:46,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:13:46,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:13:46,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:13:46,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:46" (1/1) ... [2024-11-13 23:13:46,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:46,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:13:46,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:13:46,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:13:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:13:46,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:13:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:13:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:13:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:13:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:13:47,110 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:13:47,112 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:13:47,228 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-13 23:13:47,228 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:13:47,267 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:13:47,267 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:13:47,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:47 BoogieIcfgContainer [2024-11-13 23:13:47,268 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:13:47,269 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:13:47,269 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:13:47,278 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:13:47,279 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:47" (1/1) ... [2024-11-13 23:13:47,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:13:47,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:13:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:13:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:13:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:13:47,336 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:13:47,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:13:47,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:47,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:47,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:47,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:47,664 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:13:47,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:13:47 ImpRootNode [2024-11-13 23:13:47,702 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:13:47,704 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:13:47,704 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:13:47,704 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:13:47,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:47" (3/4) ... [2024-11-13 23:13:47,708 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:13:47,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:13:47,711 INFO L158 Benchmark]: Toolchain (without parser) took 2227.37ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 44.7MB in the end (delta: 46.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-13 23:13:47,711 INFO L158 Benchmark]: CDTParser took 2.91ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:47,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1321.54ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 83.5MB in the end (delta: 7.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-13 23:13:47,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.30ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:47,712 INFO L158 Benchmark]: Boogie Preprocessor took 22.76ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:13:47,713 INFO L158 Benchmark]: RCFGBuilder took 392.15ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 64.8MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:13:47,713 INFO L158 Benchmark]: CodeCheck took 433.54ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 44.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:13:47,713 INFO L158 Benchmark]: Witness Printer took 5.53ms. Allocated memory is still 117.4MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:47,716 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of large string literal at line 1563, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] 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 2.91ms. Allocated memory is still 167.8MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1321.54ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 83.5MB in the end (delta: 7.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.30ms. Allocated memory is still 117.4MB. Free memory was 83.5MB in the beginning and 81.0MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.76ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 392.15ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 64.8MB in the end (delta: 14.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 433.54ms. Allocated memory is still 117.4MB. Free memory was 64.8MB in the beginning and 44.7MB in the end (delta: 20.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.53ms. Allocated memory is still 117.4MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:13:47,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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 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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:13:50,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:13:50,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 23:13:50,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:13:50,739 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:13:50,739 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:13:50,740 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:13:50,740 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:13:50,740 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:13:50,740 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:13:50,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:13:50,741 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 23:13:50,742 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 23:13:50,742 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 23:13:50,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:13:50,742 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:13:50,742 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:13:50,742 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:13:50,743 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:13:50,743 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:13:50,743 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 23:13:50,743 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:13:50,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:50,743 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:13:50,744 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:13:50,744 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:13:50,744 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 23:13:50,744 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 23:13:50,744 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 23:13:50,744 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_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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 -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-13 23:13:51,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:13:51,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:13:51,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:13:51,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:13:51,077 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:13:51,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i Unable to find full path for "g++" [2024-11-13 23:13:53,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:13:53,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:13:53,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-13 23:13:53,518 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/0c174bf24/3508cd0ee84f4e6798fab6c85fbc90f1/FLAG24277b79d [2024-11-13 23:13:53,609 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/data/0c174bf24/3508cd0ee84f4e6798fab6c85fbc90f1 [2024-11-13 23:13:53,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:13:53,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:13:53,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:53,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:13:53,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:13:53,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:53" (1/1) ... [2024-11-13 23:13:53,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ab9297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:53, skipping insertion in model container [2024-11-13 23:13:53,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:13:53" (1/1) ... [2024-11-13 23:13:53,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:13:54,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:54,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:13:54,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:13:54,997 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:13:54,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54 WrapperNode [2024-11-13 23:13:54,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:13:54,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:54,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:13:54,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:13:55,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,045 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 23:13:55,045 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:13:55,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:13:55,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:13:55,046 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:13:55,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,063 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:13:55,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:13:55,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:13:55,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:13:55,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:13:54" (1/1) ... [2024-11-13 23:13:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:13:55,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:13:55,127 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:13:55,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:13:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 23:13:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 23:13:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 23:13:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:13:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:13:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:13:55,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:13:55,325 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:13:55,490 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 23:13:55,490 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:13:55,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:13:55,568 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 23:13:55,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:55 BoogieIcfgContainer [2024-11-13 23:13:55,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:13:55,570 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:13:55,570 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:13:55,591 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:13:55,592 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:55" (1/1) ... [2024-11-13 23:13:55,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:13:55,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:13:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 23:13:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 23:13:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 23:13:55,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:13:55,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:13:55,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:13:55,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:13:55,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 23:13:55,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:55,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:56,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 23:13:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 23:13:56,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 23:13:56,093 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 23:13:56,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:13:56 ImpRootNode [2024-11-13 23:13:56,129 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:13:56,129 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:13:56,129 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:13:56,130 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:13:56,131 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:13:55" (3/4) ... [2024-11-13 23:13:56,133 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 23:13:56,135 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:13:56,138 INFO L158 Benchmark]: Toolchain (without parser) took 2522.42ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 34.4MB in the end (delta: 22.7MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-13 23:13:56,139 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:56,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.57ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 51.4MB in the end (delta: 5.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-13 23:13:56,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.57ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 48.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:56,142 INFO L158 Benchmark]: Boogie Preprocessor took 31.53ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:56,143 INFO L158 Benchmark]: RCFGBuilder took 491.19ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 29.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:13:56,143 INFO L158 Benchmark]: CodeCheck took 559.04ms. Allocated memory is still 83.9MB. Free memory was 29.6MB in the beginning and 34.8MB in the end (delta: -5.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2024-11-13 23:13:56,143 INFO L158 Benchmark]: Witness Printer took 5.62ms. Allocated memory is still 83.9MB. Free memory was 34.8MB in the beginning and 34.4MB in the end (delta: 420.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:13:56,147 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of large string literal at line 1563, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] 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 0.43ms. Allocated memory is still 83.9MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.57ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 51.4MB in the end (delta: 5.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.57ms. Allocated memory is still 83.9MB. Free memory was 51.4MB in the beginning and 48.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.53ms. Allocated memory is still 83.9MB. Free memory was 48.7MB in the beginning and 46.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 491.19ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 29.6MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 559.04ms. Allocated memory is still 83.9MB. Free memory was 29.6MB in the beginning and 34.8MB in the end (delta: -5.2MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 5.62ms. Allocated memory is still 83.9MB. Free memory was 34.8MB in the beginning and 34.4MB in the end (delta: 420.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 23:13:56,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf67aaf8-f4ef-4dfd-9299-3744c0294949/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