./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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_5da6bed4-498c-45e3-998f-e11456339d89/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 be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:48:43,393 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:48:43,457 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:48:43,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:48:43,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:48:43,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:48:43,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:48:43,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:48:43,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:48:43,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:48:43,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:48:43,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:48:43,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:48:43,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:48:43,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:48:43,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:48:43,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:48:43,492 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:48:43,493 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:48:43,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:48:43,493 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:48:43,494 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:48:43,495 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:48:43,495 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:48:43,496 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:48:43,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:48:43,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:48:43,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:48:43,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:48:43,498 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:48:43,498 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:48:43,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:48:43,499 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_5da6bed4-498c-45e3-998f-e11456339d89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd [2024-11-08 22:48:43,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:48:43,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:48:43,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:48:43,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:48:43,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:48:43,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i Unable to find full path for "g++" [2024-11-08 22:48:45,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:48:46,339 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:48:46,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2024-11-08 22:48:46,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/f27330359/66b7b0c5f8f848398df773d789183f6b/FLAG83b78c43e [2024-11-08 22:48:46,399 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/f27330359/66b7b0c5f8f848398df773d789183f6b [2024-11-08 22:48:46,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:48:46,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:48:46,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:48:46,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:48:46,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:48:46,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:48:46" (1/1) ... [2024-11-08 22:48:46,413 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c47610a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:46, skipping insertion in model container [2024-11-08 22:48:46,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:48:46" (1/1) ... [2024-11-08 22:48:46,490 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:48:47,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:48:47,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:48:47,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:48:47,901 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:48:47,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47 WrapperNode [2024-11-08 22:48:47,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:48:47,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:48:47,903 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:48:47,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:48:47,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:47,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:47,973 INFO L138 Inliner]: procedures = 499, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-08 22:48:47,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:48:47,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:48:47,979 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:48:47,979 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:48:47,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:47,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:47,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:47,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:48:48,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:48:48,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:48:48,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:48:48,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:47" (1/1) ... [2024-11-08 22:48:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:48:48,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:48:48,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:48:48,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:48:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:48:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:48:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:48:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 22:48:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:48:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:48:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:48:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:48:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 22:48:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:48:48,317 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:48:48,320 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:48:48,493 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 22:48:48,493 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:48:48,563 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:48:48,564 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:48:48,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:48 BoogieIcfgContainer [2024-11-08 22:48:48,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:48:48,566 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:48:48,566 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:48:48,579 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:48:48,580 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:48" (1/1) ... [2024-11-08 22:48:48,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:48:48,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:48:48,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 22:48:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 22:48:48,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:48:48,659 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:48:48,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:48:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:48,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:48:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:49,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:48:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:49,125 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:48:49,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:48:49 ImpRootNode [2024-11-08 22:48:49,155 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:48:49,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:48:49,156 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:48:49,156 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:48:49,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:48" (3/4) ... [2024-11-08 22:48:49,159 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:48:49,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:48:49,162 INFO L158 Benchmark]: Toolchain (without parser) took 2758.49ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 117.6MB in the beginning and 99.0MB in the end (delta: 18.6MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,163 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 98.6MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 119.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,164 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1497.83ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 117.6MB in the beginning and 145.1MB in the end (delta: -27.5MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.96ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 142.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,165 INFO L158 Benchmark]: Boogie Preprocessor took 57.82ms. Allocated memory is still 199.2MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,166 INFO L158 Benchmark]: RCFGBuilder took 527.55ms. Allocated memory is still 199.2MB. Free memory was 139.9MB in the beginning and 124.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,166 INFO L158 Benchmark]: CodeCheck took 588.82ms. Allocated memory is still 199.2MB. Free memory was 124.1MB in the beginning and 100.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,167 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 199.2MB. Free memory was 100.0MB in the beginning and 99.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:49,171 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, 18 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, 9 NumberOfCodeBlocks, 9 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: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={7634:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] data * 2 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 98.6MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 119.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1497.83ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 117.6MB in the beginning and 145.1MB in the end (delta: -27.5MB). Peak memory consumption was 56.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.96ms. Allocated memory is still 199.2MB. Free memory was 145.1MB in the beginning and 142.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.82ms. Allocated memory is still 199.2MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 527.55ms. Allocated memory is still 199.2MB. Free memory was 139.9MB in the beginning and 124.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 588.82ms. Allocated memory is still 199.2MB. Free memory was 124.1MB in the beginning and 100.0MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.68ms. Allocated memory is still 199.2MB. Free memory was 100.0MB in the beginning and 99.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:48:49,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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_5da6bed4-498c-45e3-998f-e11456339d89/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 be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:48:51,940 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:48:52,046 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:48:52,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:48:52,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:48:52,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:48:52,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:48:52,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:48:52,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:48:52,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:48:52,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:48:52,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:48:52,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:48:52,113 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:48:52,113 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:48:52,113 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:48:52,116 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:48:52,117 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:48:52,117 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:48:52,117 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:48:52,118 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:48:52,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:48:52,123 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:48:52,123 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:48:52,123 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:48:52,123 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:48:52,124 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:48:52,124 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:48:52,124 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:48:52,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:48:52,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:48:52,126 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:48:52,126 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:48:52,126 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:48:52,126 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:48:52,126 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_5da6bed4-498c-45e3-998f-e11456339d89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be3c297fe43a7bc8ea537df085d4f69535ba54c0205bfc09097f4c935400e3cd [2024-11-08 22:48:52,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:48:52,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:48:52,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:48:52,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:48:52,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:48:52,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i Unable to find full path for "g++" [2024-11-08 22:48:54,951 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:48:55,375 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:48:55,376 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_66_bad.i [2024-11-08 22:48:55,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/1e5e9c77e/1ce8bbb8876d4068ab383c6a0bf2e474/FLAGb37217979 [2024-11-08 22:48:55,433 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/data/1e5e9c77e/1ce8bbb8876d4068ab383c6a0bf2e474 [2024-11-08 22:48:55,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:48:55,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:48:55,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:48:55,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:48:55,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:48:55,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:48:55" (1/1) ... [2024-11-08 22:48:55,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7c6e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:55, skipping insertion in model container [2024-11-08 22:48:55,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:48:55" (1/1) ... [2024-11-08 22:48:55,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:48:56,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:48:56,656 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:48:56,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:48:56,937 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:48:56,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56 WrapperNode [2024-11-08 22:48:56,938 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:48:56,939 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:48:56,939 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:48:56,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:48:56,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:56,985 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,030 INFO L138 Inliner]: procedures = 504, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-08 22:48:57,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:48:57,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:48:57,033 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:48:57,033 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:48:57,044 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,052 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:48:57,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:48:57,091 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:48:57,091 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:48:57,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:48:56" (1/1) ... [2024-11-08 22:48:57,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:48:57,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:48:57,126 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:48:57,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:48:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:48:57,159 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:48:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 22:48:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:48:57,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:48:57,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:48:57,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:48:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 22:48:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 22:48:57,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 22:48:57,347 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:48:57,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:48:57,604 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 22:48:57,604 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:48:57,681 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:48:57,682 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:48:57,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:57 BoogieIcfgContainer [2024-11-08 22:48:57,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:48:57,686 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:48:57,686 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:48:57,697 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:48:57,697 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:57" (1/1) ... [2024-11-08 22:48:57,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:48:57,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:48:57,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 22:48:57,788 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 22:48:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:48:57,795 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:48:57,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:48:57,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:48:57,803 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:48:57,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:48:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:58,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:48:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:58,422 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:48:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:48:58,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 22:48:58,519 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:48:58,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:48:58 ImpRootNode [2024-11-08 22:48:58,556 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:48:58,557 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:48:58,559 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:48:58,560 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:48:58,560 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:48:57" (3/4) ... [2024-11-08 22:48:58,563 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:48:58,565 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:48:58,566 INFO L158 Benchmark]: Toolchain (without parser) took 3126.66ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 49.1MB in the beginning and 59.8MB in the end (delta: -10.8MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:58,567 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:48:58,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1497.43ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.8MB in the beginning and 50.3MB in the end (delta: -1.5MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2024-11-08 22:48:58,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.82ms. Allocated memory is still 104.9MB. Free memory was 50.3MB in the beginning and 74.9MB in the end (delta: -24.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-08 22:48:58,569 INFO L158 Benchmark]: Boogie Preprocessor took 57.70ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:48:58,570 INFO L158 Benchmark]: RCFGBuilder took 591.34ms. Allocated memory is still 104.9MB. Free memory was 72.8MB in the beginning and 53.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:48:58,571 INFO L158 Benchmark]: CodeCheck took 870.86ms. Allocated memory is still 104.9MB. Free memory was 53.4MB in the beginning and 60.5MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:48:58,572 INFO L158 Benchmark]: Witness Printer took 7.58ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 59.8MB in the end (delta: 629.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:48:58,578 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1581]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1571, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1571] 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) [L1571] 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] [L1572] CALL CWE191_Integer_Underflow__int_fgets_multiply_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataArray={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] dataArray[2] = data [L1566] CALL CWE191_Integer_Underflow__int_fgets_multiply_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1579] COND TRUE data < 0 VAL [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] [L1581] data * 2 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 0.30ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 51.2MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1497.43ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 48.8MB in the beginning and 50.3MB in the end (delta: -1.5MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.82ms. Allocated memory is still 104.9MB. Free memory was 50.3MB in the beginning and 74.9MB in the end (delta: -24.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.70ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.34ms. Allocated memory is still 104.9MB. Free memory was 72.8MB in the beginning and 53.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 870.86ms. Allocated memory is still 104.9MB. Free memory was 53.4MB in the beginning and 60.5MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.58ms. Allocated memory is still 104.9MB. Free memory was 60.5MB in the beginning and 59.8MB in the end (delta: 629.7kB). 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 22:48:58,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da6bed4-498c-45e3-998f-e11456339d89/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample