./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_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_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:56:00,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:56:00,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:56:00,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:56:00,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:56:00,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:56:00,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:56:00,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:56:00,617 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:56:00,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:56:00,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:56:00,618 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:56:00,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:56:00,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:56:00,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:56:00,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:56:00,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:56:00,619 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:56:00,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:56:00,619 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_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 [2024-12-06 01:56:00,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:56:00,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:56:00,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:56:00,875 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:56:00,876 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:56:00,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-12-06 01:56:03,476 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/95f9ad20d/733ddacc83d54e06b3846321bec86407/FLAGa87bee32f [2024-12-06 01:56:03,783 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:56:03,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-12-06 01:56:03,802 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/95f9ad20d/733ddacc83d54e06b3846321bec86407/FLAGa87bee32f [2024-12-06 01:56:04,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/95f9ad20d/733ddacc83d54e06b3846321bec86407 [2024-12-06 01:56:04,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:56:04,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:56:04,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:56:04,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:56:04,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:56:04,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19e603ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04, skipping insertion in model container [2024-12-06 01:56:04,070 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:56:04,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:56:04,722 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:56:04,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:56:04,900 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:56:04,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04 WrapperNode [2024-12-06 01:56:04,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:56:04,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:56:04,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:56:04,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:56:04,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,936 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2024-12-06 01:56:04,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:56:04,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:56:04,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:56:04,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:56:04,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,949 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,952 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,953 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:56:04,954 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:56:04,954 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:56:04,954 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:56:04,955 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:04" (1/1) ... [2024-12-06 01:56:04,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:56:04,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:56:04,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:56:04,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:56:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:56:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:56:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:56:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:56:04,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:56:04,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:56:05,100 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:56:05,101 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:56:05,198 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 01:56:05,198 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:56:05,229 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:56:05,229 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:56:05,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:05 BoogieIcfgContainer [2024-12-06 01:56:05,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:56:05,230 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:56:05,231 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:56:05,238 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:56:05,239 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:05" (1/1) ... [2024-12-06 01:56:05,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:56:05,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:56:05,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 01:56:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 01:56:05,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:56:05,298 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:56:05,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:56:05,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:05,411 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:56:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:05,492 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:56:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:05,520 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:56:05,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:56:05 ImpRootNode [2024-12-06 01:56:05,544 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:56:05,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:56:05,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:56:05,545 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:56:05,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:05" (3/4) ... [2024-12-06 01:56:05,547 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:56:05,548 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:56:05,549 INFO L158 Benchmark]: Toolchain (without parser) took 1484.68ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 73.9MB in the end (delta: 39.1MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-12-06 01:56:05,549 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:05,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 835.13ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.3MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. [2024-12-06 01:56:05,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.20ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 109.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:05,551 INFO L158 Benchmark]: Boogie Preprocessor took 16.72ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:05,551 INFO L158 Benchmark]: RCFGBuilder took 276.05ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 93.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:56:05,552 INFO L158 Benchmark]: CodeCheck took 313.35ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 74.5MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:56:05,552 INFO L158 Benchmark]: Witness Printer took 3.87ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 73.9MB in the end (delta: 609.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:05,554 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of fgets at line 1565. 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); [L1548] static int badStatic = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 835.13ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.3MB). Peak memory consumption was 74.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.20ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 109.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.72ms. Allocated memory is still 142.6MB. Free memory was 109.1MB in the beginning and 107.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 276.05ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 93.9MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 313.35ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 74.5MB in the end (delta: 19.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.87ms. Allocated memory is still 142.6MB. Free memory was 74.5MB in the beginning and 73.9MB in the end (delta: 609.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:56:05,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:56:07,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:56:07,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:56:07,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:56:07,597 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:56:07,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:56:07,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:56:07,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:56:07,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:56:07,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:56:07,598 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:56:07,598 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:56:07,599 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:56:07,599 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:56:07,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:56:07,600 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:56:07,600 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:56:07,600 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_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 211f5b0a18e30109e888d9a4f4d46cbe008bcfb572b01ce834f74224b9209b10 [2024-12-06 01:56:07,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:56:07,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:56:07,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:56:07,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:56:07,847 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:56:07,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-12-06 01:56:10,545 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/5cb505adf/73c3bf1f4dff42c7afcdfe2106d348ce/FLAGf7c35f38b [2024-12-06 01:56:10,827 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:56:10,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_21_bad.i [2024-12-06 01:56:10,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/5cb505adf/73c3bf1f4dff42c7afcdfe2106d348ce/FLAGf7c35f38b [2024-12-06 01:56:10,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/data/5cb505adf/73c3bf1f4dff42c7afcdfe2106d348ce [2024-12-06 01:56:10,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:56:10,861 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:56:10,862 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:56:10,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:56:10,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:56:10,867 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:56:10" (1/1) ... [2024-12-06 01:56:10,868 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204978d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:10, skipping insertion in model container [2024-12-06 01:56:10,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:56:10" (1/1) ... [2024-12-06 01:56:10,902 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:56:11,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:56:11,559 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:56:11,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:56:11,754 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:56:11,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11 WrapperNode [2024-12-06 01:56:11,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:56:11,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:56:11,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:56:11,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:56:11,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,797 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2024-12-06 01:56:11,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:56:11,798 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:56:11,799 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:56:11,799 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:56:11,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,816 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,819 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:56:11,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:56:11,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:56:11,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:56:11,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:56:11" (1/1) ... [2024-12-06 01:56:11,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:56:11,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:56:11,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:56:11,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:56:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:56:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:56:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:56:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:56:11,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:56:11,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:56:11,990 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:56:11,992 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:56:12,106 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 01:56:12,106 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:56:12,143 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:56:12,143 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:56:12,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:12 BoogieIcfgContainer [2024-12-06 01:56:12,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:56:12,144 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:56:12,145 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:56:12,154 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:56:12,154 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:12" (1/1) ... [2024-12-06 01:56:12,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:56:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:56:12,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-06 01:56:12,198 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-06 01:56:12,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:56:12,201 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:56:12,202 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:56:12,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:56:12,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:56:12,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:56:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:12,346 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:56:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:12,446 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:56:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:56:12,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:56:12,484 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:56:12,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:56:12 ImpRootNode [2024-12-06 01:56:12,507 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:56:12,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:56:12,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:56:12,507 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:56:12,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:56:12" (3/4) ... [2024-12-06 01:56:12,510 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:56:12,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:56:12,511 INFO L158 Benchmark]: Toolchain (without parser) took 1650.18ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.3MB in the beginning and 104.0MB in the end (delta: -37.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-06 01:56:12,512 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:12,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 893.13ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.9MB in the end (delta: 4.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-06 01:56:12,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.04ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:12,513 INFO L158 Benchmark]: Boogie Preprocessor took 26.63ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:12,513 INFO L158 Benchmark]: RCFGBuilder took 318.02ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 41.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:56:12,513 INFO L158 Benchmark]: CodeCheck took 362.29ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 104.5MB in the end (delta: -63.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:12,514 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 104.0MB in the end (delta: 526.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:56:12,516 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, 17 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, 9 NumberOfCodeBlocks, 9 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of fgets at line 1565. 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); [L1548] static int badStatic = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] badStatic = 1 [L1575] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=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 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 893.13ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.9MB in the end (delta: 4.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.04ms. Allocated memory is still 92.3MB. Free memory was 61.9MB in the beginning and 59.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.63ms. Allocated memory is still 92.3MB. Free memory was 59.3MB in the beginning and 57.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 318.02ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 41.1MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 362.29ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 104.5MB in the end (delta: -63.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 142.6MB. Free memory was 104.5MB in the beginning and 104.0MB in the end (delta: 526.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:56:12,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4700030d-e29f-4c91-9b1e-c44e1dee2a2d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample