./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_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_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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_a761559a-7fcd-4718-ace0-44384df0179f/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 cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:30:45,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:30:45,861 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-13 21:30:45,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:30:45,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:30:45,910 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:30:45,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:30:45,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:30:45,914 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:30:45,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:30:45,915 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:30:45,916 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:30:45,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:30:45,918 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:30:45,918 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:30:45,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:30:45,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:30:45,919 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:30:45,919 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:30:45,919 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:30:45,920 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:30:45,920 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:30:45,920 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:30:45,920 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:30:45,921 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:30:45,921 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:30:45,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:30:45,921 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_a761559a-7fcd-4718-ace0-44384df0179f/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 -> cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 [2024-11-13 21:30:46,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:30:46,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:30:46,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:30:46,360 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:30:46,361 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:30:46,362 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i Unable to find full path for "g++" [2024-11-13 21:30:48,522 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:30:49,176 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:30:49,177 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-11-13 21:30:49,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/7a57ae9f1/72fc2b13bc3c418fb4c2213228f1ba3a/FLAG122ebd19a [2024-11-13 21:30:49,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/7a57ae9f1/72fc2b13bc3c418fb4c2213228f1ba3a [2024-11-13 21:30:49,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:30:49,249 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:30:49,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:30:49,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:30:49,257 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:30:49,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:30:49" (1/1) ... [2024-11-13 21:30:49,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28362100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:49, skipping insertion in model container [2024-11-13 21:30:49,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:30:49" (1/1) ... [2024-11-13 21:30:49,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:30:50,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:30:50,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:30:50,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:30:50,695 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:30:50,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50 WrapperNode [2024-11-13 21:30:50,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:30:50,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:30:50,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:30:50,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:30:50,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,734 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,757 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2024-11-13 21:30:50,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:30:50,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:30:50,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:30:50,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:30:50,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,788 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:30:50,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:30:50,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:30:50,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:30:50,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:50" (1/1) ... [2024-11-13 21:30:50,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:30:50,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:30:50,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:30:50,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:30:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:30:50,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:30:50,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:30:51,046 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:30:51,048 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:30:51,200 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 21:30:51,201 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:30:51,246 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:30:51,246 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:30:51,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:30:51 BoogieIcfgContainer [2024-11-13 21:30:51,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:30:51,248 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:30:51,248 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:30:51,260 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:30:51,261 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:30:51" (1/1) ... [2024-11-13 21:30:51,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:30:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:30:51,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:30:51,344 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:30:51,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:30:51,348 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:30:51,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:30:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:30:51,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:30:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:30:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:30:51,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:30:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:30:51,687 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:30:51,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:30:51 ImpRootNode [2024-11-13 21:30:51,726 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:30:51,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:30:51,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:30:51,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:30:51,730 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:30:51" (3/4) ... [2024-11-13 21:30:51,733 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:30:51,734 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:30:51,735 INFO L158 Benchmark]: Toolchain (without parser) took 2485.66ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 68.3MB in the end (delta: 47.6MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2024-11-13 21:30:51,735 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:30:51,740 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1445.48ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.6MB in the end (delta: 9.1MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-11-13 21:30:51,741 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.80ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:30:51,741 INFO L158 Benchmark]: Boogie Preprocessor took 40.44ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 103.1MB in the end (delta: 811.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:30:51,742 INFO L158 Benchmark]: RCFGBuilder took 447.72ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 87.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:30:51,744 INFO L158 Benchmark]: CodeCheck took 478.29ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 68.3MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 21:30:51,744 INFO L158 Benchmark]: Witness Printer took 7.23ms. Allocated memory is still 142.6MB. Free memory is still 68.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:30:51,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] --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 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1445.48ms. Allocated memory is still 142.6MB. Free memory was 115.7MB in the beginning and 106.6MB in the end (delta: 9.1MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.80ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.9MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.44ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 103.1MB in the end (delta: 811.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 447.72ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 87.7MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 478.29ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 68.3MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.23ms. Allocated memory is still 142.6MB. Free memory is still 68.3MB. 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 21:30:51,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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_a761559a-7fcd-4718-ace0-44384df0179f/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 cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:30:54,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:30:54,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-13 21:30:54,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:30:54,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:30:54,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:30:54,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:30:54,935 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:30:54,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:30:54,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:30:54,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:30:54,935 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:30:54,935 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:30:54,936 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:30:54,937 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:30:54,937 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:30:54,937 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:30:54,937 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:30:54,937 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:30:54,937 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 21:30:54,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:30:54,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 21:30:54,938 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 21:30:54,938 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_a761559a-7fcd-4718-ace0-44384df0179f/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 -> cc97983eee1bae1752601b2134a45f91e3415daed6bc26982b68c30eb488fa92 [2024-11-13 21:30:55,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:30:55,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:30:55,286 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:30:55,288 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:30:55,288 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:30:55,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i Unable to find full path for "g++" [2024-11-13 21:30:57,387 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:30:57,906 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:30:57,910 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_44_bad.i [2024-11-13 21:30:57,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/9fc5c53af/f85381ca93664f40a91da507e4dcf8d1/FLAG923923459 [2024-11-13 21:30:57,985 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/data/9fc5c53af/f85381ca93664f40a91da507e4dcf8d1 [2024-11-13 21:30:57,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:30:57,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:30:57,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:30:57,994 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:30:58,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:30:58,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:30:57" (1/1) ... [2024-11-13 21:30:58,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20edcdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:58, skipping insertion in model container [2024-11-13 21:30:58,006 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:30:57" (1/1) ... [2024-11-13 21:30:58,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:30:59,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:30:59,249 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:30:59,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:30:59,628 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:30:59,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59 WrapperNode [2024-11-13 21:30:59,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:30:59,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:30:59,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:30:59,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:30:59,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,706 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 72 [2024-11-13 21:30:59,707 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:30:59,708 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:30:59,708 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:30:59,708 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:30:59,717 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,717 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,733 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,738 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:30:59,747 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:30:59,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:30:59,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:30:59,748 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:30:59" (1/1) ... [2024-11-13 21:30:59,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:30:59,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:30:59,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:30:59,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:30:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 21:30:59,833 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 21:30:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 21:30:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:30:59,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:30:59,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:31:00,006 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:31:00,010 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:31:00,215 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-13 21:31:00,215 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:31:00,265 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:31:00,265 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:31:00,266 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:31:00 BoogieIcfgContainer [2024-11-13 21:31:00,266 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:31:00,267 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:31:00,267 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:31:00,279 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:31:00,279 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:31:00" (1/1) ... [2024-11-13 21:31:00,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:31:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:31:00,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-13 21:31:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 21:31:00,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 21:31:00,353 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:31:00,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 21:31:00,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 21:31:00,360 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 21:31:00,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 21:31:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:31:00,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:31:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:31:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:31:00,856 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:31:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:31:00,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 21:31:00,908 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-13 21:31:00,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:31:00 ImpRootNode [2024-11-13 21:31:00,943 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:31:00,944 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:31:00,945 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:31:00,945 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:31:00,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:31:00" (3/4) ... [2024-11-13 21:31:00,950 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 21:31:00,951 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:31:00,952 INFO L158 Benchmark]: Toolchain (without parser) took 2962.02ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 75.1MB in the end (delta: 14.2MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-13 21:31:00,955 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:31:00,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1637.24ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 66.8MB in the end (delta: 22.5MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-13 21:31:00,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.53ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:31:00,956 INFO L158 Benchmark]: Boogie Preprocessor took 33.95ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:31:00,956 INFO L158 Benchmark]: RCFGBuilder took 519.49ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 44.8MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:31:00,957 INFO L158 Benchmark]: CodeCheck took 676.74ms. Allocated memory is still 117.4MB. Free memory was 44.8MB in the beginning and 75.2MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:31:00,957 INFO L158 Benchmark]: Witness Printer took 6.66ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 42.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:31:00,962 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, 0.0s 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1577] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1551] --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 0.48ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1637.24ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 66.8MB in the end (delta: 22.5MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.53ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 64.3MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.95ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 62.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 519.49ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 44.8MB in the end (delta: 17.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 676.74ms. Allocated memory is still 117.4MB. Free memory was 44.8MB in the beginning and 75.2MB in the end (delta: -30.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.66ms. Allocated memory is still 117.4MB. Free memory was 75.2MB in the beginning and 75.1MB in the end (delta: 42.6kB). 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 21:31:01,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a761559a-7fcd-4718-ace0-44384df0179f/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample