./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:47:36,375 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:47:36,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 19:47:36,481 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:47:36,485 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:47:36,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:47:36,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:47:36,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:47:36,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:47:36,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:47:36,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:47:36,526 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:47:36,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:47:36,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:47:36,527 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:47:36,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:47:36,530 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:47:36,530 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:47:36,530 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:47:36,531 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:47:36,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:47:36,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:47:36,536 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:47:36,536 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:47:36,536 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:47:36,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:47:36,537 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:47:36,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:47:36,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:47:36,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:47:36,538 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:47:36,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:47:36,538 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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-08 19:47:36,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:47:36,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:47:36,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:47:36,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:47:36,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:47:36,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i Unable to find full path for "g++" [2024-11-08 19:47:38,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:47:39,263 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:47:39,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-08 19:47:39,284 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/b5a4843e9/97708f3fbb5d42bdbb870aea987c44b2/FLAG1705503a3 [2024-11-08 19:47:39,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/b5a4843e9/97708f3fbb5d42bdbb870aea987c44b2 [2024-11-08 19:47:39,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:47:39,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:47:39,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:47:39,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:47:39,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:47:39,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:47:39" (1/1) ... [2024-11-08 19:47:39,312 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd5bba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:39, skipping insertion in model container [2024-11-08 19:47:39,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:47:39" (1/1) ... [2024-11-08 19:47:39,382 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:47:40,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:47:40,419 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:47:40,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:47:40,777 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:47:40,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40 WrapperNode [2024-11-08 19:47:40,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:47:40,779 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:47:40,779 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:47:40,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:47:40,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,809 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,833 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2024-11-08 19:47:40,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:47:40,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:47:40,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:47:40,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:47:40,844 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,860 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:47:40,861 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:47:40,861 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:47:40,861 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:47:40,862 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:40" (1/1) ... [2024-11-08 19:47:40,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:47:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:47:40,898 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:47:40,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:47:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:47:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:47:40,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:47:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:47:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:47:40,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:47:41,114 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:47:41,117 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:47:41,297 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 19:47:41,297 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:47:41,357 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:47:41,357 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:47:41,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:41 BoogieIcfgContainer [2024-11-08 19:47:41,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:47:41,359 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:47:41,359 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:47:41,370 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:47:41,370 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:41" (1/1) ... [2024-11-08 19:47:41,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:47:41,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:47:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:47:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:47:41,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:47:41,438 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:47:41,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:47:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:41,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:47:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:41,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:47:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:41,847 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:47:41,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:47:41 ImpRootNode [2024-11-08 19:47:41,890 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:47:41,892 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:47:41,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:47:41,893 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:47:41,893 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:41" (3/4) ... [2024-11-08 19:47:41,898 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:47:41,900 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:47:41,901 INFO L158 Benchmark]: Toolchain (without parser) took 2598.17ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 99.6MB in the beginning and 113.3MB in the end (delta: -13.6MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,902 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:47:41,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1474.35ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 99.6MB in the beginning and 156.3MB in the end (delta: -56.6MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.26ms. Allocated memory is still 199.2MB. Free memory was 156.3MB in the beginning and 153.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,905 INFO L158 Benchmark]: Boogie Preprocessor took 25.98ms. Allocated memory is still 199.2MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,906 INFO L158 Benchmark]: RCFGBuilder took 497.23ms. Allocated memory is still 199.2MB. Free memory was 151.0MB in the beginning and 135.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,907 INFO L158 Benchmark]: CodeCheck took 532.19ms. Allocated memory is still 199.2MB. Free memory was 135.3MB in the beginning and 114.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 19:47:41,908 INFO L158 Benchmark]: Witness Printer took 7.82ms. Allocated memory is still 199.2MB. Free memory was 114.0MB in the beginning and 113.3MB in the end (delta: 736.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:47:41,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of large string literal at line 1563, overapproximation of fgets at line 1572. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 113.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1474.35ms. Allocated memory was 140.5MB in the beginning and 199.2MB in the end (delta: 58.7MB). Free memory was 99.6MB in the beginning and 156.3MB in the end (delta: -56.6MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.26ms. Allocated memory is still 199.2MB. Free memory was 156.3MB in the beginning and 153.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.98ms. Allocated memory is still 199.2MB. Free memory was 153.1MB in the beginning and 151.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.23ms. Allocated memory is still 199.2MB. Free memory was 151.0MB in the beginning and 135.3MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 532.19ms. Allocated memory is still 199.2MB. Free memory was 135.3MB in the beginning and 114.0MB in the end (delta: 21.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.82ms. Allocated memory is still 199.2MB. Free memory was 114.0MB in the beginning and 113.3MB in the end (delta: 736.1kB). 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 19:47:41,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:47:44,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:47:44,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 19:47:44,421 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:47:44,422 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:47:44,422 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:47:44,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:47:44,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:47:44,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:47:44,425 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:47:44,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:47:44,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:47:44,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:47:44,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:47:44,427 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:47:44,428 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:47:44,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:47:44,429 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:47:44,429 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:47:44,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:47:44,430 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:47:44,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:47:44,434 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:47:44,434 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:47:44,435 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:47:44,435 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:47:44,435 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 19:47:44,436 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:47:44,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:47:44,438 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:47:44,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:47:44,439 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:47:44,440 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 19:47:44,440 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:47:44,440 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 19:47:44,441 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_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-08 19:47:44,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:47:44,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:47:44,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:47:44,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:47:44,862 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:47:44,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i Unable to find full path for "g++" [2024-11-08 19:47:47,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:47:47,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:47:47,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-08 19:47:47,426 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/f3f6fc4ba/66332a35ef5345c6bddf05158fbd2efd/FLAG9b7aec03c [2024-11-08 19:47:47,450 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/data/f3f6fc4ba/66332a35ef5345c6bddf05158fbd2efd [2024-11-08 19:47:47,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:47:47,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:47:47,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:47:47,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:47:47,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:47:47,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:47:47" (1/1) ... [2024-11-08 19:47:47,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493c5f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:47, skipping insertion in model container [2024-11-08 19:47:47,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:47:47" (1/1) ... [2024-11-08 19:47:47,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:47:48,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:47:48,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:47:48,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:47:48,894 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:47:48,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48 WrapperNode [2024-11-08 19:47:48,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:47:48,898 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:47:48,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:47:48,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:47:48,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:48,944 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:48,978 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 19:47:48,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:47:48,981 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:47:48,981 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:47:48,982 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:47:48,991 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:48,992 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:48,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:48,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,015 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,021 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,029 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:47:49,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:47:49,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:47:49,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:47:49,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:47:48" (1/1) ... [2024-11-08 19:47:49,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:47:49,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:47:49,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:47:49,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:47:49,108 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:47:49,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:47:49,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 19:47:49,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:47:49,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:47:49,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:47:49,285 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:47:49,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:47:49,422 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 19:47:49,422 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:47:49,505 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:47:49,507 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:47:49,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:49 BoogieIcfgContainer [2024-11-08 19:47:49,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:47:49,509 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:47:49,510 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:47:49,520 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:47:49,521 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:49" (1/1) ... [2024-11-08 19:47:49,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:47:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:47:49,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:47:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:47:49,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:47:49,590 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:47:49,590 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:47:49,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:47:49,599 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:47:49,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 19:47:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:49,800 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:47:49,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:49,999 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:47:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:47:50,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 19:47:50,052 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:47:50,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:47:50 ImpRootNode [2024-11-08 19:47:50,092 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:47:50,094 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:47:50,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:47:50,095 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:47:50,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:47:49" (3/4) ... [2024-11-08 19:47:50,099 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:47:50,100 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:47:50,102 INFO L158 Benchmark]: Toolchain (without parser) took 2646.61ms. Allocated memory was 60.8MB in the beginning and 107.0MB in the end (delta: 46.1MB). Free memory was 26.5MB in the beginning and 68.7MB in the end (delta: -42.2MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-11-08 19:47:50,103 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:47:50,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1439.49ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 26.3MB in the beginning and 43.4MB in the end (delta: -17.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2024-11-08 19:47:50,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.17ms. Allocated memory is still 88.1MB. Free memory was 43.4MB in the beginning and 40.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:47:50,106 INFO L158 Benchmark]: Boogie Preprocessor took 51.39ms. Allocated memory is still 88.1MB. Free memory was 40.1MB in the beginning and 38.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:47:50,106 INFO L158 Benchmark]: RCFGBuilder took 474.99ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 44.5MB in the end (delta: -6.5MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-11-08 19:47:50,108 INFO L158 Benchmark]: CodeCheck took 583.08ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.0MB in the beginning and 68.7MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:47:50,109 INFO L158 Benchmark]: Witness Printer took 6.92ms. Allocated memory is still 107.0MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:47:50,113 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of large string literal at line 1563, overapproximation of fgets at line 1572. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 60.8MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1439.49ms. Allocated memory was 60.8MB in the beginning and 88.1MB in the end (delta: 27.3MB). Free memory was 26.3MB in the beginning and 43.4MB in the end (delta: -17.1MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.17ms. Allocated memory is still 88.1MB. Free memory was 43.4MB in the beginning and 40.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.39ms. Allocated memory is still 88.1MB. Free memory was 40.1MB in the beginning and 38.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.99ms. Allocated memory is still 88.1MB. Free memory was 38.0MB in the beginning and 44.5MB in the end (delta: -6.5MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * CodeCheck took 583.08ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 44.0MB in the beginning and 68.7MB in the end (delta: -24.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.92ms. Allocated memory is still 107.0MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:47:50,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999ebfe9-ef0d-4697-b670-5d24a3eadbe7/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