./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/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_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b --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 0.3.0-dev-d790fec [2024-12-06 05:04:40,349 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:04:40,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:04:40,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:04:40,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:04:40,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:04:40,433 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:04:40,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:04:40,433 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:04:40,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:04:40,434 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:04:40,434 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:04:40,435 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:04:40,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:04:40,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:04:40,436 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:04:40,436 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:04:40,436 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:04:40,436 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:04:40,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:04:40,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 05:04:40,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:04:40,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:04:40,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:04:40,677 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:04:40,678 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:04:40,679 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-12-06 05:04:43,315 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/e51e7a647/7e3346262bc646d086082b59e6889832/FLAG5dd75b57d [2024-12-06 05:04:43,624 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:04:43,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-12-06 05:04:43,644 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/e51e7a647/7e3346262bc646d086082b59e6889832/FLAG5dd75b57d [2024-12-06 05:04:43,657 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/e51e7a647/7e3346262bc646d086082b59e6889832 [2024-12-06 05:04:43,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:04:43,660 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:04:43,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:04:43,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:04:43,665 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:04:43,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:43" (1/1) ... [2024-12-06 05:04:43,666 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e24805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:43, skipping insertion in model container [2024-12-06 05:04:43,666 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:43" (1/1) ... [2024-12-06 05:04:43,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:04:44,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:04:44,489 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:04:44,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:04:44,683 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:04:44,684 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44 WrapperNode [2024-12-06 05:04:44,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:04:44,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:04:44,685 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:04:44,685 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:04:44,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,706 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,721 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-12-06 05:04:44,721 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:04:44,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:04:44,722 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:04:44,722 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:04:44,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,731 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,732 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,737 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:04:44,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:04:44,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:04:44,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:04:44,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:44" (1/1) ... [2024-12-06 05:04:44,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:04:44,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:04:44,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:04:44,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:04:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:04:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:04:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:04:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:04:44,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:04:44,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:04:44,932 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:04:44,933 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:04:45,029 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-12-06 05:04:45,030 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:04:45,064 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:04:45,064 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:04:45,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:45 BoogieIcfgContainer [2024-12-06 05:04:45,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:04:45,065 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:04:45,065 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:04:45,075 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:04:45,075 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:45" (1/1) ... [2024-12-06 05:04:45,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:04:45,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:04:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:04:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:04:45,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:04:45,130 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:04:45,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:04:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:45,250 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:04:45,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:45,344 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:04:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:45,376 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:04:45,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:04:45 ImpRootNode [2024-12-06 05:04:45,402 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:04:45,403 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:04:45,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:04:45,403 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:04:45,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:45" (3/4) ... [2024-12-06 05:04:45,406 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:04:45,407 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:04:45,408 INFO L158 Benchmark]: Toolchain (without parser) took 1748.34ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 43.7MB in the end (delta: 45.9MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-12-06 05:04:45,409 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:45,409 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1023.52ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 81.8MB in the end (delta: 7.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-12-06 05:04:45,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.56ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:04:45,410 INFO L158 Benchmark]: Boogie Preprocessor took 22.43ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:45,411 INFO L158 Benchmark]: RCFGBuilder took 319.96ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 63.8MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:04:45,411 INFO L158 Benchmark]: CodeCheck took 337.01ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.2MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:04:45,412 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 43.7MB in the end (delta: 538.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:45,414 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, ConComCheckerStatistics: 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 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 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1023.52ms. Allocated memory is still 117.4MB. Free memory was 89.6MB in the beginning and 81.8MB in the end (delta: 7.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.56ms. Allocated memory is still 117.4MB. Free memory was 81.8MB in the beginning and 78.9MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.43ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.96ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 63.8MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 337.01ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 44.2MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 117.4MB. Free memory was 44.2MB in the beginning and 43.7MB in the end (delta: 538.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:04:45,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/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_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b --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 0.3.0-dev-d790fec [2024-12-06 05:04:47,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:04:47,617 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:04:47,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:04:47,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:04:47,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:04:47,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:04:47,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:04:47,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:04:47,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:04:47,649 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:04:47,649 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:04:47,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:04:47,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:04:47,650 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:04:47,651 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:04:47,651 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:04:47,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b 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 [2024-12-06 05:04:47,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:04:47,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:04:47,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:04:47,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:04:47,941 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:04:47,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-12-06 05:04:50,806 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/159c2301a/86980b94363145b4b60ee9722eaa37b8/FLAG0a8db80dd [2024-12-06 05:04:51,134 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:04:51,135 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-12-06 05:04:51,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/159c2301a/86980b94363145b4b60ee9722eaa37b8/FLAG0a8db80dd [2024-12-06 05:04:51,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/data/159c2301a/86980b94363145b4b60ee9722eaa37b8 [2024-12-06 05:04:51,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:04:51,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:04:51,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:04:51,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:04:51,188 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:04:51,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:51" (1/1) ... [2024-12-06 05:04:51,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14f6a089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:51, skipping insertion in model container [2024-12-06 05:04:51,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:04:51" (1/1) ... [2024-12-06 05:04:51,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:04:51,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:04:51,963 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:04:52,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:04:52,167 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:04:52,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52 WrapperNode [2024-12-06 05:04:52,168 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:04:52,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:04:52,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:04:52,168 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:04:52,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,212 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-06 05:04:52,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:04:52,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:04:52,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:04:52,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:04:52,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,218 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,222 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,222 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,232 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,238 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:04:52,239 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:04:52,239 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:04:52,239 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:04:52,240 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:04:52,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:04:52,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:04:52,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:04:52,298 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:04:52,298 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:04:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:04:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:04:52,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:04:52,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:04:52,441 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:04:52,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:04:52,571 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-12-06 05:04:52,572 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:04:52,614 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:04:52,614 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:04:52,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:52 BoogieIcfgContainer [2024-12-06 05:04:52,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:04:52,615 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:04:52,615 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:04:52,623 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:04:52,623 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:52" (1/1) ... [2024-12-06 05:04:52,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:04:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:04:52,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:04:52,671 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:04:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:04:52,675 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:04:52,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:04:52,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:04:52,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:04:52,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:04:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:52,832 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:04:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:52,962 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:04:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:04:53,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:04:53,010 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:04:53,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:04:53 ImpRootNode [2024-12-06 05:04:53,038 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:04:53,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:04:53,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:04:53,039 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:04:53,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:04:52" (3/4) ... [2024-12-06 05:04:53,042 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:04:53,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:04:53,044 INFO L158 Benchmark]: Toolchain (without parser) took 1863.29ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 65.9MB in the beginning and 111.3MB in the end (delta: -45.3MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-12-06 05:04:53,045 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:53,045 INFO L158 Benchmark]: CACSL2BoogieTranslator took 985.24ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.0MB in the end (delta: 3.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-06 05:04:53,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.82ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:53,046 INFO L158 Benchmark]: Boogie Preprocessor took 25.75ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:53,047 INFO L158 Benchmark]: RCFGBuilder took 375.07ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 40.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:04:53,047 INFO L158 Benchmark]: CodeCheck took 423.24ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 40.9MB in the beginning and 111.3MB in the end (delta: -70.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:53,048 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 111.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:04:53,050 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: 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 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 0.33ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 985.24ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 62.0MB in the end (delta: 3.7MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.82ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 59.3MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.75ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 375.07ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 40.9MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 423.24ms. Allocated memory was 92.3MB in the beginning and 151.0MB in the end (delta: 58.7MB). Free memory was 40.9MB in the beginning and 111.3MB in the end (delta: -70.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 151.0MB. Free memory was 111.3MB in the beginning and 111.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:04:53,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1821bbe6-de1e-4186-be7d-4b85f0f9e39d/bin/ukojak-verify-CZk0znPC7b/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