./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk --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 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:20:13,530 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:20:13,636 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:20:13,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:20:13,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:20:13,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:20:13,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:20:13,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:20:13,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:20:13,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:20:13,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:20:13,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:20:13,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:20:13,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:20:13,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:20:13,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:20:13,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:20:13,685 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:20:13,686 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:20:13,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:20:13,687 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:20:13,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:20:13,687 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:20:13,688 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:20:13,688 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:20:13,689 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:20:13,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:13,689 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:20:13,690 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:20:13,690 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:20:13,690 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:20:13,691 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:20:13,691 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-11-08 22:20:13,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:20:14,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:20:14,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:20:14,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:20:14,019 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:20:14,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i Unable to find full path for "g++" [2024-11-08 22:20:16,000 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:20:16,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:20:16,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-08 22:20:16,432 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/f612d998b/9f2f36ca8fbb432da6f0854064681f9e/FLAG8ad38280e [2024-11-08 22:20:16,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/f612d998b/9f2f36ca8fbb432da6f0854064681f9e [2024-11-08 22:20:16,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:20:16,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:20:16,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:16,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:20:16,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:20:16,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:16" (1/1) ... [2024-11-08 22:20:16,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33890d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:16, skipping insertion in model container [2024-11-08 22:20:16,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:16" (1/1) ... [2024-11-08 22:20:16,551 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:20:17,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:17,540 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:20:17,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:17,794 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:20:17,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17 WrapperNode [2024-11-08 22:20:17,794 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:17,795 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:17,795 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:20:17,795 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:20:17,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,868 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-08 22:20:17,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:17,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:20:17,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:20:17,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:20:17,876 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,886 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,889 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,890 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:20:17,893 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:20:17,893 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:20:17,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:20:17,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:17" (1/1) ... [2024-11-08 22:20:17,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:17,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:20:17,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:20:17,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:20:17,972 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:20:17,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:20:17,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:20:17,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:20:18,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:20:18,129 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:20:18,324 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 22:20:18,325 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:20:18,365 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:20:18,365 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:20:18,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:18 BoogieIcfgContainer [2024-11-08 22:20:18,366 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:20:18,367 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:20:18,367 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:20:18,375 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:20:18,375 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:18" (1/1) ... [2024-11-08 22:20:18,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:20:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:20:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:20:18,443 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:20:18,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:20:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:18,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:20:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:18,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:18,714 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:20:18,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:18,750 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:20:18,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:20:18 ImpRootNode [2024-11-08 22:20:18,779 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:20:18,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:20:18,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:20:18,782 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:20:18,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:18" (3/4) ... [2024-11-08 22:20:18,785 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:20:18,787 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:20:18,788 INFO L158 Benchmark]: Toolchain (without parser) took 2325.69ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 117.0MB in the beginning and 128.1MB in the end (delta: -11.2MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,789 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:20:18,790 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1331.01ms. Allocated memory is still 148.9MB. Free memory was 116.3MB in the beginning and 74.3MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,791 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.56ms. Allocated memory is still 148.9MB. Free memory was 74.3MB in the beginning and 71.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,792 INFO L158 Benchmark]: Boogie Preprocessor took 23.49ms. Allocated memory is still 148.9MB. Free memory was 71.5MB in the beginning and 70.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,794 INFO L158 Benchmark]: RCFGBuilder took 472.68ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 70.2MB in the beginning and 149.1MB in the end (delta: -78.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,795 INFO L158 Benchmark]: CodeCheck took 412.79ms. Allocated memory is still 184.5MB. Free memory was 149.1MB in the beginning and 129.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 22:20:18,796 INFO L158 Benchmark]: Witness Printer took 7.33ms. Allocated memory is still 184.5MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:20:18,800 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: 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 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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 0.28ms. Allocated memory is still 113.2MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1331.01ms. Allocated memory is still 148.9MB. Free memory was 116.3MB in the beginning and 74.3MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.56ms. Allocated memory is still 148.9MB. Free memory was 74.3MB in the beginning and 71.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.49ms. Allocated memory is still 148.9MB. Free memory was 71.5MB in the beginning and 70.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 472.68ms. Allocated memory was 148.9MB in the beginning and 184.5MB in the end (delta: 35.7MB). Free memory was 70.2MB in the beginning and 149.1MB in the end (delta: -78.9MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * CodeCheck took 412.79ms. Allocated memory is still 184.5MB. Free memory was 149.1MB in the beginning and 129.0MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.33ms. Allocated memory is still 184.5MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:20:18,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk --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 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:20:21,177 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:20:21,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:20:21,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:20:21,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:20:21,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:20:21,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:20:21,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:20:21,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:20:21,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:20:21,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:20:21,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:20:21,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:20:21,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:20:21,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:20:21,303 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:20:21,303 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:20:21,303 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:20:21,304 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:20:21,304 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:20:21,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:20:21,308 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:20:21,309 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:20:21,309 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:20:21,309 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:20:21,310 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:20:21,310 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:20:21,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:20:21,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:21,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:20:21,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:20:21,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:20:21,315 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:20:21,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:20:21,315 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:20:21,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 933c0b3b15cb1a5d8884b98af5a907acd249944f8667b7429c689a9258cb74ed [2024-11-08 22:20:21,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:20:21,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:20:21,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:20:21,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:20:21,707 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:20:21,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i Unable to find full path for "g++" [2024-11-08 22:20:23,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:20:24,159 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:20:24,160 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_45_bad.i [2024-11-08 22:20:24,194 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/db296bfc9/36a9a4f6290b410b8c118138b9e48c6d/FLAGcd3b778ed [2024-11-08 22:20:24,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/data/db296bfc9/36a9a4f6290b410b8c118138b9e48c6d [2024-11-08 22:20:24,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:20:24,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:20:24,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:24,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:20:24,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:20:24,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:24" (1/1) ... [2024-11-08 22:20:24,341 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61f5b3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:24, skipping insertion in model container [2024-11-08 22:20:24,341 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:20:24" (1/1) ... [2024-11-08 22:20:24,415 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:20:25,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:25,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:20:25,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:20:25,686 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:20:25,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25 WrapperNode [2024-11-08 22:20:25,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:20:25,688 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:25,688 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:20:25,688 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:20:25,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,735 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,759 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 22:20:25,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:20:25,760 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:20:25,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:20:25,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:20:25,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,778 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,798 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,801 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:20:25,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:20:25,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:20:25,815 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:20:25,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:20:25" (1/1) ... [2024-11-08 22:20:25,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:20:25,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:20:25,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:20:25,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:20:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:20:25,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:20:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:20:25,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:20:25,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:20:25,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:20:26,054 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:20:26,056 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:20:26,208 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 22:20:26,210 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:20:26,268 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:20:26,269 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:20:26,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:26 BoogieIcfgContainer [2024-11-08 22:20:26,270 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:20:26,271 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:20:26,272 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:20:26,281 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:20:26,282 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:26" (1/1) ... [2024-11-08 22:20:26,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:20:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:20:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 22:20:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 22:20:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:20:26,353 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:20:26,353 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:20:26,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:20:26,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:20:26,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:20:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:26,594 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:20:26,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:26,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:20:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:20:26,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:20:26,784 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:20:26,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:20:26 ImpRootNode [2024-11-08 22:20:26,818 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:20:26,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:20:26,821 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:20:26,822 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:20:26,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:20:26" (3/4) ... [2024-11-08 22:20:26,825 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:20:26,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:20:26,827 INFO L158 Benchmark]: Toolchain (without parser) took 2497.73ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 54.6MB in the beginning and 58.3MB in the end (delta: -3.7MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-08 22:20:26,827 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 54.5MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:20:26,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1355.80ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 44.2MB in the end (delta: 10.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-08 22:20:26,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.94ms. Allocated memory is still 98.6MB. Free memory was 44.2MB in the beginning and 69.9MB in the end (delta: -25.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-08 22:20:26,829 INFO L158 Benchmark]: Boogie Preprocessor took 53.14ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:20:26,831 INFO L158 Benchmark]: RCFGBuilder took 456.65ms. Allocated memory is still 98.6MB. Free memory was 67.8MB in the beginning and 49.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:20:26,831 INFO L158 Benchmark]: CodeCheck took 546.69ms. Allocated memory is still 98.6MB. Free memory was 49.5MB in the beginning and 58.3MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:20:26,832 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 98.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:20:26,835 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 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_predec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData; [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] CWE191_Integer_Underflow__int_fgets_predec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_predec_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_predec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_predec_45_goodG2BData=0, 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 0.26ms. Allocated memory is still 54.5MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1355.80ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 54.4MB in the beginning and 44.2MB in the end (delta: 10.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.94ms. Allocated memory is still 98.6MB. Free memory was 44.2MB in the beginning and 69.9MB in the end (delta: -25.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.14ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.65ms. Allocated memory is still 98.6MB. Free memory was 67.8MB in the beginning and 49.5MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 546.69ms. Allocated memory is still 98.6MB. Free memory was 49.5MB in the beginning and 58.3MB in the end (delta: -8.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 98.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:20:26,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a03b9c0-3980-44d7-82e5-e51d5b9595ae/bin/ukojak-verify-ImItNfHLgk/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