./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:37:12,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:37:13,045 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 19:37:13,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:37:13,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:37:13,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:37:13,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:37:13,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:37:13,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:37:13,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:37:13,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:37:13,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:37:13,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:37:13,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:37:13,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:37:13,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:37:13,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:37:13,087 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:37:13,088 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:37:13,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:37:13,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:37:13,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:37:13,090 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:37:13,091 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:37:13,091 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:37:13,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:37:13,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:13,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:37:13,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:37:13,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:37:13,098 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:37:13,098 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:37:13,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-08 19:37:13,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:37:13,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:37:13,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:37:13,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:37:13,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:37:13,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i Unable to find full path for "g++" [2024-11-08 19:37:16,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:37:16,547 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:37:16,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-08 19:37:16,585 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/2e6dd8185/459e8ff65992424890d275d0a2f1770e/FLAG4df9d39a3 [2024-11-08 19:37:16,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/2e6dd8185/459e8ff65992424890d275d0a2f1770e [2024-11-08 19:37:16,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:37:16,607 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:37:16,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:16,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:37:16,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:37:16,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:16" (1/1) ... [2024-11-08 19:37:16,619 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af56384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:16, skipping insertion in model container [2024-11-08 19:37:16,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:16" (1/1) ... [2024-11-08 19:37:16,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:37:18,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:18,048 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:37:18,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:18,357 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:37:18,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18 WrapperNode [2024-11-08 19:37:18,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:18,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:18,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:37:18,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:37:18,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,454 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2024-11-08 19:37:18,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:18,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:37:18,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:37:18,458 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:37:18,470 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,478 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,488 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,494 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:37:18,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:37:18,511 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:37:18,511 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:37:18,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:18" (1/1) ... [2024-11-08 19:37:18,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:18,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:37:18,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:37:18,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:37:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:37:18,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:37:18,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:37:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:37:18,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:37:18,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:37:18,848 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:37:18,850 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:37:19,015 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 19:37:19,016 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:37:19,073 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:37:19,074 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:37:19,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:19 BoogieIcfgContainer [2024-11-08 19:37:19,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:37:19,076 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:37:19,076 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:37:19,090 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:37:19,090 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:19" (1/1) ... [2024-11-08 19:37:19,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:37:19,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:37:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:37:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:37:19,182 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:19,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:37:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:19,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:37:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:19,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:37:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:19,583 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:37:19,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:37:19 ImpRootNode [2024-11-08 19:37:19,625 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:37:19,626 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:37:19,627 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:37:19,627 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:37:19,628 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:19" (3/4) ... [2024-11-08 19:37:19,633 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:37:19,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:37:19,637 INFO L158 Benchmark]: Toolchain (without parser) took 3029.72ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 117.1MB in the end (delta: 13.5MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,638 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 123.7MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:37:19,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1748.68ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 64.1MB in the end (delta: 66.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.23ms. Allocated memory is still 176.2MB. Free memory was 64.1MB in the beginning and 61.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,640 INFO L158 Benchmark]: Boogie Preprocessor took 52.57ms. Allocated memory is still 176.2MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,641 INFO L158 Benchmark]: RCFGBuilder took 564.84ms. Allocated memory is still 176.2MB. Free memory was 60.0MB in the beginning and 132.9MB in the end (delta: -72.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,642 INFO L158 Benchmark]: CodeCheck took 549.75ms. Allocated memory is still 176.2MB. Free memory was 132.7MB in the beginning and 117.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:37:19,643 INFO L158 Benchmark]: Witness Printer took 9.93ms. Allocated memory is still 176.2MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:37:19,650 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 123.7MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1748.68ms. Allocated memory is still 176.2MB. Free memory was 130.6MB in the beginning and 64.1MB in the end (delta: 66.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.23ms. Allocated memory is still 176.2MB. Free memory was 64.1MB in the beginning and 61.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.57ms. Allocated memory is still 176.2MB. Free memory was 61.4MB in the beginning and 60.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.84ms. Allocated memory is still 176.2MB. Free memory was 60.0MB in the beginning and 132.9MB in the end (delta: -72.9MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * CodeCheck took 549.75ms. Allocated memory is still 176.2MB. Free memory was 132.7MB in the beginning and 117.1MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 9.93ms. Allocated memory is still 176.2MB. Free memory is still 117.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:37:19,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:37:22,726 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:37:22,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 19:37:22,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:37:22,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:37:22,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:37:22,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:37:22,907 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:37:22,910 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:37:22,910 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:37:22,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:37:22,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:37:22,912 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:37:22,914 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:37:22,915 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:37:22,915 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:37:22,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:37:22,916 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:37:22,917 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:37:22,917 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:37:22,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:37:22,918 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:37:22,919 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:37:22,919 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:37:22,920 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:37:22,920 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:37:22,921 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 19:37:22,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:37:22,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:22,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:37:22,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:37:22,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:37:22,923 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 19:37:22,924 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:37:22,924 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 19:37:22,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cab402ae7f6fc37ff81cd1633a6040486d6a881d5e9ad3bdd2642728ba2d2b73 [2024-11-08 19:37:23,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:37:23,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:37:23,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:37:23,384 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:37:23,387 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:37:23,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i Unable to find full path for "g++" [2024-11-08 19:37:25,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:37:26,238 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:37:26,239 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_18_bad.i [2024-11-08 19:37:26,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/c14706a57/51859932bcac473fb4f902055047fa8e/FLAG14ae39d11 [2024-11-08 19:37:26,296 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/data/c14706a57/51859932bcac473fb4f902055047fa8e [2024-11-08 19:37:26,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:37:26,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:37:26,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:26,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:37:26,310 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:37:26,311 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:26" (1/1) ... [2024-11-08 19:37:26,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e811143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:26, skipping insertion in model container [2024-11-08 19:37:26,313 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:37:26" (1/1) ... [2024-11-08 19:37:26,410 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:37:28,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:28,106 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:37:28,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:37:28,494 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:37:28,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28 WrapperNode [2024-11-08 19:37:28,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:37:28,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:28,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:37:28,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:37:28,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,559 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,603 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-08 19:37:28,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:37:28,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:37:28,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:37:28,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:37:28,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,643 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,646 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:37:28,675 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:37:28,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:37:28,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:37:28,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:37:28" (1/1) ... [2024-11-08 19:37:28,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:37:28,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:37:28,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:37:28,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:37:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:37:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:37:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 19:37:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:37:28,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:37:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:37:28,949 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:37:28,952 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:37:29,206 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 19:37:29,207 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:37:29,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:37:29,305 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:37:29,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:29 BoogieIcfgContainer [2024-11-08 19:37:29,306 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:37:29,307 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:37:29,307 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:37:29,321 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:37:29,321 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:29" (1/1) ... [2024-11-08 19:37:29,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:37:29,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:37:29,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:37:29,421 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:37:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:37:29,429 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:37:29,429 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:37:29,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:37:29,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:37:29,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 19:37:29,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:29,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:37:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:29,874 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:37:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:37:29,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 19:37:29,947 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:37:29,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:37:29 ImpRootNode [2024-11-08 19:37:29,997 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:37:29,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:37:29,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:37:30,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:37:30,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:37:29" (3/4) ... [2024-11-08 19:37:30,005 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:37:30,007 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:37:30,008 INFO L158 Benchmark]: Toolchain (without parser) took 3707.41ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 58.3MB in the beginning and 77.3MB in the end (delta: -19.1MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-08 19:37:30,009 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:37:30,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2192.71ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 36.4MB in the end (delta: 21.6MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2024-11-08 19:37:30,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.44ms. Allocated memory is still 86.0MB. Free memory was 36.4MB in the beginning and 33.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:37:30,013 INFO L158 Benchmark]: Boogie Preprocessor took 69.32ms. Allocated memory is still 86.0MB. Free memory was 33.1MB in the beginning and 57.1MB in the end (delta: -24.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-08 19:37:30,014 INFO L158 Benchmark]: RCFGBuilder took 630.54ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 39.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:37:30,015 INFO L158 Benchmark]: CodeCheck took 690.06ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 39.4MB in the beginning and 77.8MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:37:30,016 INFO L158 Benchmark]: Witness Printer took 8.36ms. Allocated memory is still 113.2MB. Free memory was 77.8MB in the beginning and 77.3MB in the end (delta: 457.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:37:30,020 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1575, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_18_bad() [L1550] int data; [L1551] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 60.8MB. Free memory was 37.2MB in the beginning and 37.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2192.71ms. Allocated memory is still 86.0MB. Free memory was 58.1MB in the beginning and 36.4MB in the end (delta: 21.6MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.44ms. Allocated memory is still 86.0MB. Free memory was 36.4MB in the beginning and 33.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.32ms. Allocated memory is still 86.0MB. Free memory was 33.1MB in the beginning and 57.1MB in the end (delta: -24.0MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * RCFGBuilder took 630.54ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 39.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 690.06ms. Allocated memory was 86.0MB in the beginning and 113.2MB in the end (delta: 27.3MB). Free memory was 39.4MB in the beginning and 77.8MB in the end (delta: -38.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.36ms. Allocated memory is still 113.2MB. Free memory was 77.8MB in the beginning and 77.3MB in the end (delta: 457.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:37:30,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9020f3c-becc-4e10-9883-68315c3f94fa/bin/ukojak-verify-ImItNfHLgk/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