./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_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_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3 --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 cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:17:32,163 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:17:32,264 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:17:32,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:17:32,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:17:32,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:17:32,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:17:32,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:17:32,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:17:32,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:17:32,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:17:32,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:17:32,313 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:17:32,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:17:32,316 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:17:32,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:17:32,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:17:32,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:17:32,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:17:32,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:17:32,317 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:17:32,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:17:32,317 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_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3 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 -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-25 02:17:32,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:17:32,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:17:32,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:17:32,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:17:32,647 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:17:32,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-25 02:17:35,734 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/cc990e337/a9e8a294b4a74603aa51e301551a8dc0/FLAG8be146d62 [2024-11-25 02:17:36,198 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:17:36,198 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-25 02:17:36,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/cc990e337/a9e8a294b4a74603aa51e301551a8dc0/FLAG8be146d62 [2024-11-25 02:17:36,256 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/cc990e337/a9e8a294b4a74603aa51e301551a8dc0 [2024-11-25 02:17:36,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:17:36,261 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:17:36,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:17:36,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:17:36,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:17:36,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:17:36" (1/1) ... [2024-11-25 02:17:36,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69fce9a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:36, skipping insertion in model container [2024-11-25 02:17:36,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:17:36" (1/1) ... [2024-11-25 02:17:36,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:17:37,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:17:37,434 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:17:37,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:17:37,713 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:17:37,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37 WrapperNode [2024-11-25 02:17:37,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:17:37,714 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:17:37,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:17:37,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:17:37,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,781 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-11-25 02:17:37,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:17:37,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:17:37,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:17:37,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:17:37,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,792 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,804 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,805 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,811 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,820 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:17:37,821 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:17:37,821 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:17:37,821 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:17:37,822 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:37" (1/1) ... [2024-11-25 02:17:37,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:17:37,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:17:37,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:17:37,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:17:37,894 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:17:37,894 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:17:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:17:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:17:37,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:17:37,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:17:38,082 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:17:38,084 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:17:38,242 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-25 02:17:38,242 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:17:38,307 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:17:38,307 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:17:38,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:38 BoogieIcfgContainer [2024-11-25 02:17:38,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:17:38,308 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:17:38,308 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:17:38,321 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:17:38,321 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:38" (1/1) ... [2024-11-25 02:17:38,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:17:38,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:17:38,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:17:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:17:38,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:17:38,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:17:38,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:17:38,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:38,483 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:17:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:38,564 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:17:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:38,596 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:17:38,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:17:38 ImpRootNode [2024-11-25 02:17:38,621 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:17:38,622 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:17:38,622 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:17:38,622 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:17:38,623 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:38" (3/4) ... [2024-11-25 02:17:38,625 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:17:38,626 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:17:38,627 INFO L158 Benchmark]: Toolchain (without parser) took 2366.52ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 49.9MB in the end (delta: 38.4MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2024-11-25 02:17:38,628 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 83.9MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:38,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1450.88ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 80.7MB in the end (delta: 7.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-25 02:17:38,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.32ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:17:38,629 INFO L158 Benchmark]: Boogie Preprocessor took 37.89ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:38,629 INFO L158 Benchmark]: RCFGBuilder took 486.68ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 63.6MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:17:38,630 INFO L158 Benchmark]: CodeCheck took 312.83ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 49.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:17:38,630 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 117.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:38,633 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 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 0.43ms. Allocated memory is still 83.9MB. Free memory is still 39.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1450.88ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 80.7MB in the end (delta: 7.2MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.32ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.3MB in the end (delta: 2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.89ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 77.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 486.68ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 63.6MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 312.83ms. Allocated memory is still 117.4MB. Free memory was 63.6MB in the beginning and 49.9MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 117.4MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:17:38,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/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_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3 --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 cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:17:41,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:17:41,597 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:17:41,624 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:17:41,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:17:41,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:17:41,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:17:41,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:17:41,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:17:41,629 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:17:41,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:17:41,630 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:17:41,630 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:17:41,630 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:17:41,630 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:17:41,631 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:17:41,631 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:17:41,631 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:17:41,631 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:17:41,632 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:17:41,632 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:17:41,633 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:17:41,633 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:17:41,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:17:41,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:17:41,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:17:41,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:17:41,634 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:17:41,634 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:17:41,635 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:17:41,635 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_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3 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 -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-25 02:17:41,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:17:41,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:17:41,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:17:41,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:17:41,993 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:17:41,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-25 02:17:45,182 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/7ea835689/d2ca180360744af09cc28bbdf2d6db09/FLAGe612d2fb4 [2024-11-25 02:17:45,686 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:17:45,687 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-25 02:17:45,722 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/7ea835689/d2ca180360744af09cc28bbdf2d6db09/FLAGe612d2fb4 [2024-11-25 02:17:45,756 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/data/7ea835689/d2ca180360744af09cc28bbdf2d6db09 [2024-11-25 02:17:45,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:17:45,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:17:45,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:17:45,765 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:17:45,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:17:45,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:17:45" (1/1) ... [2024-11-25 02:17:45,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6402728d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:45, skipping insertion in model container [2024-11-25 02:17:45,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:17:45" (1/1) ... [2024-11-25 02:17:45,836 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:17:46,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:17:46,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:17:46,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:17:47,136 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:17:47,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47 WrapperNode [2024-11-25 02:17:47,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:17:47,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:17:47,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:17:47,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:17:47,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,199 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-25 02:17:47,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:17:47,200 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:17:47,200 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:17:47,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:17:47,210 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,210 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,215 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,230 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,245 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:17:47,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:17:47,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:17:47,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:17:47,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:17:47,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:17:47,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:17:47,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:17:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:17:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:17:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:17:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:17:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:17:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:17:47,523 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:17:47,525 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:17:47,689 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-25 02:17:47,689 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:17:47,750 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:17:47,753 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:17:47,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:47 BoogieIcfgContainer [2024-11-25 02:17:47,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:17:47,755 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:17:47,755 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:17:47,769 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:17:47,769 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:47" (1/1) ... [2024-11-25 02:17:47,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:17:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:17:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:17:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:17:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:17:47,853 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:17:47,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:17:47,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:17:47,861 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:17:47,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:17:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:48,063 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:17:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:48,189 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:17:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:17:48,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:17:48,232 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:17:48,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:17:48 ImpRootNode [2024-11-25 02:17:48,257 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:17:48,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:17:48,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:17:48,258 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:17:48,258 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:17:47" (3/4) ... [2024-11-25 02:17:48,261 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:17:48,262 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:17:48,263 INFO L158 Benchmark]: Toolchain (without parser) took 2500.63ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 43.0MB in the end (delta: 14.1MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-25 02:17:48,263 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:48,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.54ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 52.6MB in the end (delta: 4.3MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-25 02:17:48,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.05ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 49.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:48,264 INFO L158 Benchmark]: Boogie Preprocessor took 45.91ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 48.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:48,264 INFO L158 Benchmark]: RCFGBuilder took 504.92ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 32.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:17:48,265 INFO L158 Benchmark]: CodeCheck took 502.03ms. Allocated memory is still 83.9MB. Free memory was 32.2MB in the beginning and 43.0MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:48,265 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 5.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:17:48,269 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 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 0.32ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.54ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 52.6MB in the end (delta: 4.3MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.05ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 49.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.91ms. Allocated memory is still 83.9MB. Free memory was 49.9MB in the beginning and 48.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 504.92ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 32.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 502.03ms. Allocated memory is still 83.9MB. Free memory was 32.2MB in the beginning and 43.0MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 83.9MB. Free memory was 43.0MB in the beginning and 43.0MB in the end (delta: 5.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:17:48,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_096b603c-307a-428c-bb85-34c9f2ac5f02/bin/ukojak-verify-ENZ3QT5qd3/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