./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_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_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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_1144767f-b730-47e3-ba3a-3fc6c2b43721/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 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:33:42,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:33:42,814 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:33:42,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:33:42,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:33:42,836 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:33:42,837 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:33:42,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:33:42,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:33:42,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:33:42,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:33:42,838 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:33:42,839 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:33:42,839 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:33:42,839 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:33:42,839 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:33:42,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:33:42,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:33:42,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:33:42,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:33:42,840 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:33:42,840 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:33:42,840 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:33:42,840 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_1144767f-b730-47e3-ba3a-3fc6c2b43721/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 -> 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a [2024-12-06 05:33:43,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:33:43,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:33:43,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:33:43,051 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:33:43,051 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:33:43,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-12-06 05:33:45,636 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/987d65900/b4af8268cc484a308a238887ff1858ee/FLAG2739bee23 [2024-12-06 05:33:45,955 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:33:45,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-12-06 05:33:45,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/987d65900/b4af8268cc484a308a238887ff1858ee/FLAG2739bee23 [2024-12-06 05:33:46,192 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/987d65900/b4af8268cc484a308a238887ff1858ee [2024-12-06 05:33:46,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:33:46,195 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:33:46,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:33:46,197 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:33:46,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:33:46,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:46,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134dafa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46, skipping insertion in model container [2024-12-06 05:33:46,201 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:46,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:33:46,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:33:46,816 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:33:46,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:33:46,995 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:33:46,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46 WrapperNode [2024-12-06 05:33:46,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:33:46,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:33:46,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:33:46,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:33:47,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,017 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,031 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-12-06 05:33:47,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:33:47,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:33:47,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:33:47,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:33:47,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,042 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,047 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,051 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:33:47,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:33:47,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:33:47,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:33:47,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:46" (1/1) ... [2024-12-06 05:33:47,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:33:47,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:33:47,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:33:47,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:33:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:33:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:33:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:33:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:33:47,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:33:47,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:33:47,224 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:33:47,225 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:33:47,311 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 05:33:47,311 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:33:47,343 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:33:47,343 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:33:47,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:47 BoogieIcfgContainer [2024-12-06 05:33:47,344 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:33:47,344 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:33:47,344 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:33:47,354 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:33:47,355 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:47" (1/1) ... [2024-12-06 05:33:47,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:33:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:33:47,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:33:47,405 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:33:47,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:33:47,409 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:33:47,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:33:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:47,508 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:33:47,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:47,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:33:47,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:47,618 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:33:47,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:33:47 ImpRootNode [2024-12-06 05:33:47,638 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:33:47,638 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:33:47,638 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:33:47,638 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:33:47,639 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:47" (3/4) ... [2024-12-06 05:33:47,641 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:33:47,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:33:47,642 INFO L158 Benchmark]: Toolchain (without parser) took 1446.74ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 71.3MB in the end (delta: 44.6MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-12-06 05:33:47,643 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:47,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.75ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 107.1MB in the end (delta: 8.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-12-06 05:33:47,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.26ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 104.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:33:47,644 INFO L158 Benchmark]: Boogie Preprocessor took 20.99ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 103.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:47,645 INFO L158 Benchmark]: RCFGBuilder took 289.93ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 89.4MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:33:47,645 INFO L158 Benchmark]: CodeCheck took 293.26ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 71.3MB in the end (delta: 18.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 05:33:47,645 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 142.6MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:47,648 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: 0.2s, 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_51_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_51b_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.75ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 107.1MB in the end (delta: 8.8MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.26ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 104.9MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.99ms. Allocated memory is still 142.6MB. Free memory was 104.9MB in the beginning and 103.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.93ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 89.4MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 293.26ms. Allocated memory is still 142.6MB. Free memory was 89.4MB in the beginning and 71.3MB in the end (delta: 18.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 142.6MB. Free memory is still 71.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:33:47,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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_1144767f-b730-47e3-ba3a-3fc6c2b43721/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 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:33:49,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:33:49,652 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:33:49,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:33:49,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:33:49,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:33:49,676 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:33:49,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:33:49,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:33:49,676 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:33:49,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:33:49,677 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:33:49,678 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:33:49,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:33:49,678 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:33:49,678 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:33:49,679 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:33:49,679 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:33:49,679 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:33:49,679 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:33:49,679 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_1144767f-b730-47e3-ba3a-3fc6c2b43721/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 -> 7b04f392176375d25ddd9b836c223b22286636b2effde0c9ab3022927820c00a [2024-12-06 05:33:49,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:33:49,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:33:49,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:33:49,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:33:49,907 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:33:49,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-12-06 05:33:52,593 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/80915f4b8/a1ad3b117f2a4f87b9bdc14f59066791/FLAGa4060d719 [2024-12-06 05:33:52,893 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:33:52,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_51_bad.i [2024-12-06 05:33:52,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/80915f4b8/a1ad3b117f2a4f87b9bdc14f59066791/FLAGa4060d719 [2024-12-06 05:33:52,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/data/80915f4b8/a1ad3b117f2a4f87b9bdc14f59066791 [2024-12-06 05:33:52,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:33:52,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:33:52,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:33:52,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:33:52,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:33:52,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:33:52" (1/1) ... [2024-12-06 05:33:52,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8bdca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:52, skipping insertion in model container [2024-12-06 05:33:52,945 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:33:52" (1/1) ... [2024-12-06 05:33:52,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:33:53,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:33:53,729 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:33:53,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:33:53,929 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:33:53,929 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53 WrapperNode [2024-12-06 05:33:53,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:33:53,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:33:53,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:33:53,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:33:53,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,971 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-12-06 05:33:53,972 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:33:53,972 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:33:53,972 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:33:53,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:33:53,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,987 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,990 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:53,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:33:53,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:33:53,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:33:53,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:33:53,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:33:53" (1/1) ... [2024-12-06 05:33:54,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:33:54,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:33:54,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:33:54,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:33:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:33:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:33:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:33:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:33:54,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:33:54,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:33:54,158 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:33:54,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:33:54,259 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 05:33:54,259 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:33:54,295 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:33:54,295 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:33:54,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:54 BoogieIcfgContainer [2024-12-06 05:33:54,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:33:54,296 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:33:54,296 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:33:54,304 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:33:54,304 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:54" (1/1) ... [2024-12-06 05:33:54,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:33:54,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:33:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 05:33:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 05:33:54,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:33:54,347 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:33:54,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:33:54,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:33:54,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:33:54,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:33:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:54,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:33:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:54,595 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:33:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:33:54,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 05:33:54,623 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 05:33:54,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:33:54 ImpRootNode [2024-12-06 05:33:54,641 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:33:54,642 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:33:54,642 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:33:54,642 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:33:54,643 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:33:54" (3/4) ... [2024-12-06 05:33:54,644 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:33:54,645 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:33:54,646 INFO L158 Benchmark]: Toolchain (without parser) took 1709.75ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 52.3MB in the end (delta: 13.9MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-12-06 05:33:54,646 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:54,646 INFO L158 Benchmark]: CACSL2BoogieTranslator took 992.39ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 60.3MB in the end (delta: 5.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-06 05:33:54,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.33ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 57.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:54,647 INFO L158 Benchmark]: Boogie Preprocessor took 22.89ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 55.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:54,647 INFO L158 Benchmark]: RCFGBuilder took 299.26ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 40.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:33:54,648 INFO L158 Benchmark]: CodeCheck took 345.78ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 52.3MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:54,648 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:33:54,650 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] 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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_51_bad() [L1551] int data; [L1552] data = 0 [L1554] 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_51b_badSink(data) [L1577] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 992.39ms. Allocated memory is still 92.3MB. Free memory was 66.0MB in the beginning and 60.3MB in the end (delta: 5.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.33ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 57.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.89ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 55.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.26ms. Allocated memory is still 92.3MB. Free memory was 55.9MB in the beginning and 40.2MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 345.78ms. Allocated memory is still 92.3MB. Free memory was 40.2MB in the beginning and 52.3MB in the end (delta: -12.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 52.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 05:33:54,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1144767f-b730-47e3-ba3a-3fc6c2b43721/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