./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_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_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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_72549d16-b692-462e-8048-469270e97aea/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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:26:05,621 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:26:05,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:26:05,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:26:05,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:26:05,754 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:26:05,757 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:26:05,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:26:05,758 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:26:05,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:26:05,761 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:26:05,761 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:26:05,761 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:26:05,763 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:26:05,763 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:26:05,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:26:05,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:26:05,764 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:26:05,765 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:26:05,765 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:26:05,765 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:26:05,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:26:05,770 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:26:05,770 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:26:05,770 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:26:05,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:26:05,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:05,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:26:05,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:26:05,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:26:05,772 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:26:05,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:26:05,772 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_72549d16-b692-462e-8048-469270e97aea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-09 00:26:06,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:26:06,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:26:06,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:26:06,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:26:06,120 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:26:06,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i Unable to find full path for "g++" [2024-11-09 00:26:08,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:26:08,527 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:26:08,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-09 00:26:08,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/3738dcbb7/946cf29d7174468b9bc5dd2cf45aed33/FLAG33b2ec3c4 [2024-11-09 00:26:08,587 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/3738dcbb7/946cf29d7174468b9bc5dd2cf45aed33 [2024-11-09 00:26:08,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:26:08,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:26:08,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:08,596 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:26:08,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:26:08,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:08" (1/1) ... [2024-11-09 00:26:08,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f269788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:08, skipping insertion in model container [2024-11-09 00:26:08,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:08" (1/1) ... [2024-11-09 00:26:08,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:26:09,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:09,974 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:26:10,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:10,251 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:26:10,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10 WrapperNode [2024-11-09 00:26:10,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:10,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:10,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:26:10,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:26:10,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,328 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2024-11-09 00:26:10,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:10,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:26:10,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:26:10,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:26:10,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:26:10,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:26:10,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:26:10,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:26:10,373 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:10,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:26:10,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:26:10,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:26:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:26:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:26:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:26:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:26:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:26:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:26:10,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:26:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:26:10,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:26:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:26:10,662 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:26:10,664 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:26:10,815 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 00:26:10,816 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:26:10,857 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:26:10,858 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:26:10,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:10 BoogieIcfgContainer [2024-11-09 00:26:10,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:26:10,859 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:26:10,860 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:26:10,875 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:26:10,875 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:10" (1/1) ... [2024-11-09 00:26:10,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:26:10,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:26:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:26:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:10,943 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:10,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:26:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:11,141 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:11,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:11,488 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:26:11,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:26:11 ImpRootNode [2024-11-09 00:26:11,537 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:26:11,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:26:11,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:26:11,538 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:26:11,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:10" (3/4) ... [2024-11-09 00:26:11,542 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:26:11,544 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:26:11,545 INFO L158 Benchmark]: Toolchain (without parser) took 2951.13ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 104.9MB in the beginning and 143.2MB in the end (delta: -38.3MB). Peak memory consumption was 6.9MB. Max. memory is 16.1GB. [2024-11-09 00:26:11,546 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory was 114.6MB in the beginning and 114.5MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:11,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1656.31ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 93.2MB in the end (delta: 11.7MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. [2024-11-09 00:26:11,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.22ms. Allocated memory is still 140.5MB. Free memory was 93.2MB in the beginning and 90.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:11,549 INFO L158 Benchmark]: Boogie Preprocessor took 37.53ms. Allocated memory is still 140.5MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:11,550 INFO L158 Benchmark]: RCFGBuilder took 489.64ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 72.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:26:11,551 INFO L158 Benchmark]: CodeCheck took 677.97ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 143.2MB in the end (delta: -71.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:11,552 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 186.6MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:11,556 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={17068:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 140.5MB. Free memory was 114.6MB in the beginning and 114.5MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1656.31ms. Allocated memory is still 140.5MB. Free memory was 104.9MB in the beginning and 93.2MB in the end (delta: 11.7MB). Peak memory consumption was 67.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.22ms. Allocated memory is still 140.5MB. Free memory was 93.2MB in the beginning and 90.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.53ms. Allocated memory is still 140.5MB. Free memory was 90.6MB in the beginning and 89.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.64ms. Allocated memory is still 140.5MB. Free memory was 89.0MB in the beginning and 72.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 677.97ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 72.3MB in the beginning and 143.2MB in the end (delta: -71.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 186.6MB. Free memory is still 143.2MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:26:11,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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 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_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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_72549d16-b692-462e-8048-469270e97aea/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 d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:26:13,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:26:14,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:26:14,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:26:14,124 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:26:14,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:26:14,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:26:14,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:26:14,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:26:14,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:26:14,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:26:14,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:26:14,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:26:14,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:26:14,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:26:14,135 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:26:14,136 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:26:14,136 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:26:14,140 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:26:14,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:26:14,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:26:14,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:26:14,145 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:26:14,145 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:26:14,145 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:26:14,146 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:14,146 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:26:14,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:26:14,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:14,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:26:14,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:26:14,150 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:26:14,150 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:26:14,151 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:14,151 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:26:14,152 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_72549d16-b692-462e-8048-469270e97aea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d659dc6f0ad2d9acd88210dfc5f7c881a249899e90930440f45f83a63aaec4f7 [2024-11-09 00:26:14,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:26:14,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:26:14,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:26:14,607 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:26:14,608 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:26:14,609 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i Unable to find full path for "g++" [2024-11-09 00:26:16,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:26:16,990 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:26:16,991 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_64_bad.i [2024-11-09 00:26:17,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/8c6fe1cf7/8df18729d1894331a3381440ca1f1fe7/FLAGe1c4b16df [2024-11-09 00:26:17,193 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/data/8c6fe1cf7/8df18729d1894331a3381440ca1f1fe7 [2024-11-09 00:26:17,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:26:17,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:26:17,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:17,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:26:17,209 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:26:17,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:17" (1/1) ... [2024-11-09 00:26:17,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4f1cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:17, skipping insertion in model container [2024-11-09 00:26:17,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:26:17" (1/1) ... [2024-11-09 00:26:17,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:26:18,421 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 00:26:18,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:18,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:26:18,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:26:18,684 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:26:18,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18 WrapperNode [2024-11-09 00:26:18,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:26:18,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:18,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:26:18,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:26:18,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,728 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,761 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-09 00:26:18,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:26:18,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:26:18,762 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:26:18,762 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:26:18,772 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,802 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:26:18,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:26:18,803 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:26:18,803 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:26:18,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:26:18" (1/1) ... [2024-11-09 00:26:18,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:26:18,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:26:18,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:26:18,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:26:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:26:18,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:26:18,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:26:18,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 00:26:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:26:18,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:26:18,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:26:18,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 00:26:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:26:18,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 00:26:19,128 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:26:19,130 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:26:19,366 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-09 00:26:19,367 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:26:19,443 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:26:19,445 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:26:19,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19 BoogieIcfgContainer [2024-11-09 00:26:19,446 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:26:19,446 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:26:19,448 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:26:19,459 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:26:19,459 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19" (1/1) ... [2024-11-09 00:26:19,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:26:19,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:26:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-09 00:26:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-09 00:26:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:26:19,541 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:26:19,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:26:19,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:26:19,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:26:19,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:26:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:19,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:20,088 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:26:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:26:20,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:26:20,189 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-09 00:26:20,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:26:20 ImpRootNode [2024-11-09 00:26:20,227 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:26:20,229 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:26:20,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:26:20,229 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:26:20,231 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:26:19" (3/4) ... [2024-11-09 00:26:20,234 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:26:20,235 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:26:20,236 INFO L158 Benchmark]: Toolchain (without parser) took 3038.69ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 55.4MB in the beginning and 76.2MB in the end (delta: -20.8MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,236 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:26:20,237 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1486.81ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 55.2MB in the beginning and 62.5MB in the end (delta: -7.3MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.46ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 59.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,239 INFO L158 Benchmark]: Boogie Preprocessor took 40.05ms. Allocated memory is still 109.1MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,241 INFO L158 Benchmark]: RCFGBuilder took 643.32ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 69.4MB in the end (delta: -12.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,242 INFO L158 Benchmark]: CodeCheck took 780.64ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 76.8MB in the end (delta: -7.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,242 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 109.1MB. Free memory was 76.8MB in the beginning and 76.2MB in the end (delta: 622.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:26:20,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 59.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1486.81ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 55.2MB in the beginning and 62.5MB in the end (delta: -7.3MB). Peak memory consumption was 35.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.46ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 59.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.05ms. Allocated memory is still 109.1MB. Free memory was 59.3MB in the beginning and 57.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 643.32ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 69.4MB in the end (delta: -12.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * CodeCheck took 780.64ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 76.8MB in the end (delta: -7.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 109.1MB. Free memory was 76.8MB in the beginning and 76.2MB in the end (delta: 622.5kB). 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 [2024-11-09 00:26:20,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_72549d16-b692-462e-8048-469270e97aea/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