./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_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_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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_66027be4-49aa-459b-9aa9-b43884a1a11a/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 630aed2d3e1573298ea1fe3f5f3e9eb882822ead2780a649e85bb29b7cc2f367 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:14:29,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:14:29,547 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 22:14:29,550 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:14:29,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:14:29,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:14:29,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:14:29,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:14:29,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:14:29,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:14:29,570 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:14:29,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:14:29,571 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:14:29,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:14:29,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:14:29,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:14:29,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:14:29,572 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:14:29,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:14:29,572 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_66027be4-49aa-459b-9aa9-b43884a1a11a/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 -> 630aed2d3e1573298ea1fe3f5f3e9eb882822ead2780a649e85bb29b7cc2f367 [2024-12-05 22:14:29,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:14:29,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:14:29,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:14:29,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:14:29,788 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:14:29,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i [2024-12-05 22:14:32,485 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/1e8f666df/d2263f6b328d4e4f91d30fba9f6d2f59/FLAG6b6588796 [2024-12-05 22:14:32,779 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:14:32,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i [2024-12-05 22:14:32,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/1e8f666df/d2263f6b328d4e4f91d30fba9f6d2f59/FLAG6b6588796 [2024-12-05 22:14:33,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/1e8f666df/d2263f6b328d4e4f91d30fba9f6d2f59 [2024-12-05 22:14:33,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:14:33,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:14:33,072 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:14:33,072 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:14:33,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:14:33,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7564fab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33, skipping insertion in model container [2024-12-05 22:14:33,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,116 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:14:33,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:14:33,732 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:14:33,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:14:33,921 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:14:33,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33 WrapperNode [2024-12-05 22:14:33,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:14:33,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:14:33,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:14:33,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:14:33,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,959 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-12-05 22:14:33,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:14:33,960 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:14:33,960 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:14:33,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:14:33,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,971 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:14:33,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:14:33,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:14:33,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:14:33,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:33" (1/1) ... [2024-12-05 22:14:33,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:14:33,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:14:34,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:14:34,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:14:34,033 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:14:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:14:34,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:14:34,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:14:34,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:14:34,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:14:34,160 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:14:34,161 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:14:34,257 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 22:14:34,257 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:14:34,286 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:14:34,286 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:14:34,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:34 BoogieIcfgContainer [2024-12-05 22:14:34,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:14:34,287 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:14:34,287 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:14:34,296 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:14:34,297 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:34" (1/1) ... [2024-12-05 22:14:34,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:14:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:14:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 22:14:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 22:14:34,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:14:34,352 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:14:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:14:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:34,466 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:14:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:34,549 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:14:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:34,579 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:14:34,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:14:34 ImpRootNode [2024-12-05 22:14:34,602 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:14:34,603 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:14:34,603 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:14:34,603 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:14:34,604 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:34" (3/4) ... [2024-12-05 22:14:34,606 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:14:34,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:14:34,607 INFO L158 Benchmark]: Toolchain (without parser) took 1536.18ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 44.5MB in the end (delta: 45.3MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-12-05 22:14:34,608 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.2MB in the end (delta: 87.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:34,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.32ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 81.4MB in the end (delta: 8.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-12-05 22:14:34,609 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 79.1MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 22:14:34,609 INFO L158 Benchmark]: Boogie Preprocessor took 15.85ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 78.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:34,609 INFO L158 Benchmark]: RCFGBuilder took 310.50ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 63.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:14:34,610 INFO L158 Benchmark]: CodeCheck took 315.00ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 45.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:14:34,610 INFO L158 Benchmark]: Witness Printer took 3.72ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.5MB in the end (delta: 536.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:34,612 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, 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) [L1565] CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=1, 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 0.26ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 73.2MB in the end (delta: 87.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.32ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 81.4MB in the end (delta: 8.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 79.1MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.85ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 78.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 310.50ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 63.5MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 315.00ms. Allocated memory is still 117.4MB. Free memory was 63.5MB in the beginning and 45.0MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.72ms. Allocated memory is still 117.4MB. Free memory was 45.0MB in the beginning and 44.5MB in the end (delta: 536.2kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:14:34,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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_66027be4-49aa-459b-9aa9-b43884a1a11a/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 630aed2d3e1573298ea1fe3f5f3e9eb882822ead2780a649e85bb29b7cc2f367 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:14:36,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:14:36,608 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 22:14:36,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:14:36,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:14:36,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:14:36,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:14:36,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:14:36,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:14:36,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 22:14:36,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:14:36,637 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:14:36,637 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 22:14:36,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:14:36,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:14:36,638 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 22:14:36,638 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_66027be4-49aa-459b-9aa9-b43884a1a11a/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 -> 630aed2d3e1573298ea1fe3f5f3e9eb882822ead2780a649e85bb29b7cc2f367 [2024-12-05 22:14:36,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:14:36,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:14:36,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:14:36,890 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:14:36,891 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:14:36,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i [2024-12-05 22:14:39,565 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/d446691b6/30fbc13cdfa649278e63ea358ed0aaa2/FLAG400d9f431 [2024-12-05 22:14:39,836 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:14:39,837 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_22_bad.i [2024-12-05 22:14:39,858 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/d446691b6/30fbc13cdfa649278e63ea358ed0aaa2/FLAG400d9f431 [2024-12-05 22:14:40,114 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/data/d446691b6/30fbc13cdfa649278e63ea358ed0aaa2 [2024-12-05 22:14:40,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:14:40,117 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:14:40,118 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:14:40,118 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:14:40,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:14:40,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:40,122 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142803b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40, skipping insertion in model container [2024-12-05 22:14:40,123 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:40,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:14:40,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:14:40,769 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:14:40,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:14:40,966 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:14:40,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40 WrapperNode [2024-12-05 22:14:40,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:14:40,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:14:40,967 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:14:40,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:14:40,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:40,991 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,009 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2024-12-05 22:14:41,009 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:14:41,010 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:14:41,010 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:14:41,010 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:14:41,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,020 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,020 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,027 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,028 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,034 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:14:41,035 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:14:41,035 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:14:41,035 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:14:41,036 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:14:40" (1/1) ... [2024-12-05 22:14:41,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:14:41,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:14:41,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:14:41,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:14:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:14:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:14:41,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 22:14:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:14:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:14:41,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:14:41,196 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:14:41,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:14:41,307 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 22:14:41,307 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:14:41,341 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:14:41,342 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:14:41,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:41 BoogieIcfgContainer [2024-12-05 22:14:41,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:14:41,343 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:14:41,343 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:14:41,350 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:14:41,350 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:41" (1/1) ... [2024-12-05 22:14:41,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:14:41,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:14:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-12-05 22:14:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-12-05 22:14:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 22:14:41,394 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:14:41,395 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 22:14:41,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 22:14:41,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 22:14:41,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 22:14:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:41,560 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:14:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:41,674 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:14:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:14:41,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-05 22:14:41,706 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:14:41,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:14:41 ImpRootNode [2024-12-05 22:14:41,731 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:14:41,732 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:14:41,732 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:14:41,732 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:14:41,732 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:14:41" (3/4) ... [2024-12-05 22:14:41,735 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:14:41,736 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:14:41,736 INFO L158 Benchmark]: Toolchain (without parser) took 1618.97ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 52.9MB in the end (delta: 13.6MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2024-12-05 22:14:41,737 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:41,737 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.63ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.7MB in the end (delta: 3.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-12-05 22:14:41,737 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.12ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 60.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:41,738 INFO L158 Benchmark]: Boogie Preprocessor took 24.46ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:41,738 INFO L158 Benchmark]: RCFGBuilder took 307.18ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 41.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:14:41,739 INFO L158 Benchmark]: CodeCheck took 388.35ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 53.4MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:41,739 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 52.9MB in the end (delta: 535.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:14:41,741 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, 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) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_fgets_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=0, 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) [L1565] CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal = 1 [L1566] CALL CWE191_Integer_Underflow__int_fgets_predec_22_badSink(data) [L1579] COND TRUE \read(CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal) VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] --data VAL [CWE191_Integer_Underflow__int_fgets_predec_22_badGlobal=1, 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 0.41ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.63ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 62.7MB in the end (delta: 3.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.12ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 60.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.46ms. Allocated memory is still 92.3MB. Free memory was 60.0MB in the beginning and 58.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 307.18ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 41.6MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 388.35ms. Allocated memory is still 92.3MB. Free memory was 41.6MB in the beginning and 53.4MB in the end (delta: -11.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 92.3MB. Free memory was 53.4MB in the beginning and 52.9MB in the end (delta: 535.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:14:41,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66027be4-49aa-459b-9aa9-b43884a1a11a/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