./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:13:02,638 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:13:02,704 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:13:02,709 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:13:02,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:13:02,732 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:13:02,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:13:02,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:13:02,733 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:13:02,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:13:02,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:13:02,734 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:13:02,735 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:13:02,735 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:13:02,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:13:02,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:13:02,736 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:13:02,736 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:13:02,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:13:02,736 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:13:02,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:13:02,736 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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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 -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2024-11-25 04:13:03,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:13:03,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:13:03,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:13:03,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:13:03,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:13:03,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-25 04:13:06,044 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/c0cf33b88/d71e93686a184528af04c6b0902e0e63/FLAG463f0b72d [2024-11-25 04:13:06,515 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:13:06,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-25 04:13:06,548 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/c0cf33b88/d71e93686a184528af04c6b0902e0e63/FLAG463f0b72d [2024-11-25 04:13:06,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/c0cf33b88/d71e93686a184528af04c6b0902e0e63 [2024-11-25 04:13:06,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:13:06,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:13:06,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:13:06,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:13:06,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:13:06,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:13:06" (1/1) ... [2024-11-25 04:13:06,627 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d468d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:06, skipping insertion in model container [2024-11-25 04:13:06,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:13:06" (1/1) ... [2024-11-25 04:13:06,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:13:07,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:13:07,658 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:13:07,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:13:07,941 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:13:07,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07 WrapperNode [2024-11-25 04:13:07,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:13:07,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:13:07,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:13:07,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:13:07,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:07,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,011 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-25 04:13:08,011 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:13:08,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:13:08,012 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:13:08,012 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:13:08,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,020 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,040 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,043 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,047 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:13:08,048 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:13:08,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:13:08,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:13:08,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:07" (1/1) ... [2024-11-25 04:13:08,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:13:08,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:13:08,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:13:08,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:13:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:13:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:13:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:13:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:13:08,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:13:08,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:13:08,269 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:13:08,271 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:13:08,436 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 04:13:08,437 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:13:08,484 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:13:08,484 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:13:08,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:08 BoogieIcfgContainer [2024-11-25 04:13:08,485 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:13:08,485 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:13:08,485 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:13:08,496 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:13:08,496 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:08" (1/1) ... [2024-11-25 04:13:08,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:13:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:13:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:13:08,565 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:13:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:13:08,570 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:13:08,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:13:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:08,744 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:13:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:08,885 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:13:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:08,919 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:13:08,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:13:08 ImpRootNode [2024-11-25 04:13:08,945 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:13:08,945 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:13:08,946 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:13:08,946 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:13:08,946 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:08" (3/4) ... [2024-11-25 04:13:08,949 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:13:08,950 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:13:08,951 INFO L158 Benchmark]: Toolchain (without parser) took 2332.59ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 44.0MB in the end (delta: 46.7MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-11-25 04:13:08,951 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:08,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1323.01ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 81.0MB in the end (delta: 9.7MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2024-11-25 04:13:08,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.29ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:13:08,957 INFO L158 Benchmark]: Boogie Preprocessor took 34.92ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:08,957 INFO L158 Benchmark]: RCFGBuilder took 437.16ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 63.2MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:13:08,958 INFO L158 Benchmark]: CodeCheck took 459.55ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 44.0MB in the end (delta: 19.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:13:08,958 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 44.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:08,960 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] --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 0.28ms. Allocated memory is still 167.8MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1323.01ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 81.0MB in the end (delta: 9.7MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.29ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.8MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.92ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 437.16ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 63.2MB in the end (delta: 14.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 459.55ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 44.0MB in the end (delta: 19.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 117.4MB. Free memory is still 44.0MB. 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 04:13:08,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:13:11,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:13:11,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:13:11,868 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:13:11,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:13:11,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:13:11,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:13:11,870 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:13:11,870 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:13:11,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:13:11,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:13:11,870 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:13:11,871 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:13:11,874 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:13:11,874 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:13:11,874 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:13:11,874 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:13:11,875 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:13:11,875 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:13:11,875 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:13:11,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:13:11,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:13:11,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:13:11,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:13:11,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:13:11,876 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:13:11,876 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:13:11,877 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:13:11,877 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_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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 -> 19fc8183fba1eb121ee525b760bdb774d06d6b4ae769602452066aa7d1005c34 [2024-11-25 04:13:12,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:13:12,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:13:12,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:13:12,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:13:12,243 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:13:12,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-25 04:13:15,301 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/1ec58d31c/017adce4c2d349029900b691d8e08f2b/FLAG7adaf278f [2024-11-25 04:13:15,780 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:13:15,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_42_bad.i [2024-11-25 04:13:15,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/1ec58d31c/017adce4c2d349029900b691d8e08f2b/FLAG7adaf278f [2024-11-25 04:13:15,835 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/data/1ec58d31c/017adce4c2d349029900b691d8e08f2b [2024-11-25 04:13:15,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:13:15,839 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:13:15,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:13:15,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:13:15,844 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:13:15,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:13:15" (1/1) ... [2024-11-25 04:13:15,846 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee43044 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:15, skipping insertion in model container [2024-11-25 04:13:15,846 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:13:15" (1/1) ... [2024-11-25 04:13:15,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:13:17,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:13:17,030 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:13:17,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:13:17,321 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:13:17,322 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17 WrapperNode [2024-11-25 04:13:17,323 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:13:17,324 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:13:17,324 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:13:17,324 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:13:17,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,356 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,381 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 04:13:17,382 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:13:17,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:13:17,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:13:17,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:13:17,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,394 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,402 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,403 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:13:17,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:13:17,414 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:13:17,414 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:13:17,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:13:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:13:17,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:13:17,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:13:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:13:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:13:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:13:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:13:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:13:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:13:17,736 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:13:17,738 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:13:17,908 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-25 04:13:17,909 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:13:17,974 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:13:17,975 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:13:17,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:17 BoogieIcfgContainer [2024-11-25 04:13:17,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:13:17,976 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:13:17,976 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:13:17,986 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:13:17,986 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:17" (1/1) ... [2024-11-25 04:13:17,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:13:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:13:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:13:18,052 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:13:18,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:13:18,055 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:13:18,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:13:18,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:13:18,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:13:18,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:13:18,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:18,300 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:13:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:18,460 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:13:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:13:18,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-25 04:13:18,533 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:13:18,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:13:18 ImpRootNode [2024-11-25 04:13:18,574 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:13:18,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:13:18,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:13:18,575 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:13:18,577 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:13:17" (3/4) ... [2024-11-25 04:13:18,580 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:13:18,581 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:13:18,582 INFO L158 Benchmark]: Toolchain (without parser) took 2742.88ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 88.8MB in the beginning and 244.1MB in the end (delta: -155.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2024-11-25 04:13:18,583 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:18,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1483.54ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 66.8MB in the end (delta: 21.8MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. [2024-11-25 04:13:18,583 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.76ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 63.9MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:18,584 INFO L158 Benchmark]: Boogie Preprocessor took 30.60ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:18,584 INFO L158 Benchmark]: RCFGBuilder took 561.49ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 45.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:13:18,588 INFO L158 Benchmark]: CodeCheck took 598.54ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 45.6MB in the beginning and 244.8MB in the end (delta: -199.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:18,588 INFO L158 Benchmark]: Witness Printer took 5.78ms. Allocated memory is still 285.2MB. Free memory was 244.8MB in the beginning and 244.1MB in the end (delta: 687.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:13:18,590 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_predec_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] --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 0.30ms. Allocated memory is still 117.4MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1483.54ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 66.8MB in the end (delta: 21.8MB). Peak memory consumption was 49.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.76ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 63.9MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.60ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 561.49ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 45.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 598.54ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 45.6MB in the beginning and 244.8MB in the end (delta: -199.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.78ms. Allocated memory is still 285.2MB. Free memory was 244.8MB in the beginning and 244.1MB in the end (delta: 687.8kB). 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 04:13:18,616 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_05d51979-de9c-48d1-bffe-8a27ec9ae2a5/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