./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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 d2a3ab2b0e719126f92e3917183260b3e68c23837fef9aae0929ed461aeb4c7c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:36:07,624 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:36:07,682 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 23:36:07,687 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:36:07,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:36:07,708 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:36:07,709 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:36:07,709 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:36:07,709 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:36:07,710 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:36:07,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:36:07,711 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:36:07,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:36:07,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:36:07,711 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:36:07,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:36:07,712 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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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 -> d2a3ab2b0e719126f92e3917183260b3e68c23837fef9aae0929ed461aeb4c7c [2024-12-05 23:36:07,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:36:07,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:36:07,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:36:07,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:36:07,965 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:36:07,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i [2024-12-05 23:36:10,578 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/bf54bedfc/3d3caee18d654d16a23ad684493f070e/FLAG1780796b7 [2024-12-05 23:36:10,875 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:36:10,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i [2024-12-05 23:36:10,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/bf54bedfc/3d3caee18d654d16a23ad684493f070e/FLAG1780796b7 [2024-12-05 23:36:11,151 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/bf54bedfc/3d3caee18d654d16a23ad684493f070e [2024-12-05 23:36:11,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:36:11,155 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:36:11,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:36:11,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:36:11,161 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:36:11,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:36:11" (1/1) ... [2024-12-05 23:36:11,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7713e474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:11, skipping insertion in model container [2024-12-05 23:36:11,163 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:36:11" (1/1) ... [2024-12-05 23:36:11,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:36:11,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:36:11,877 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:36:11,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:36:12,049 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:36:12,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12 WrapperNode [2024-12-05 23:36:12,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:36:12,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:36:12,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:36:12,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:36:12,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,083 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,100 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-12-05 23:36:12,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:36:12,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:36:12,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:36:12,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:36:12,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,109 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,113 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,117 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:36:12,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:36:12,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:36:12,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:36:12,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:36:12,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:36:12,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:36:12,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:36:12,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:36:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:36:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:36:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:36:12,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:36:12,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:36:12,271 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:36:12,272 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:36:12,365 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 23:36:12,365 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:36:12,397 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:36:12,397 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:36:12,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:12 BoogieIcfgContainer [2024-12-05 23:36:12,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:36:12,398 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:36:12,398 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:36:12,405 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:36:12,405 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:12" (1/1) ... [2024-12-05 23:36:12,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:36:12,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:36:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:36:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:36:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:36:12,449 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:36:12,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:36:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:12,544 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:36:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:12,621 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:36:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:12,647 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:36:12,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:36:12 ImpRootNode [2024-12-05 23:36:12,669 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:36:12,670 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:36:12,670 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:36:12,670 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:36:12,671 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:12" (3/4) ... [2024-12-05 23:36:12,673 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:36:12,674 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:36:12,675 INFO L158 Benchmark]: Toolchain (without parser) took 1519.87ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 79.1MB in the end (delta: 34.5MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-12-05 23:36:12,675 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:12,676 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.49ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 54.7MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 23:36:12,676 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.19ms. Allocated memory is still 142.6MB. Free memory was 54.7MB in the beginning and 113.6MB in the end (delta: -59.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2024-12-05 23:36:12,677 INFO L158 Benchmark]: Boogie Preprocessor took 17.73ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 112.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:12,677 INFO L158 Benchmark]: RCFGBuilder took 277.93ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 98.5MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:36:12,677 INFO L158 Benchmark]: CodeCheck took 271.23ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 79.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:36:12,678 INFO L158 Benchmark]: Witness Printer took 4.18ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 79.1MB in the end (delta: 660.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:12,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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); [L1572] 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) [L1572] 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] [L1573] CALL CWE191_Integer_Underflow__int_fgets_postdec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.49ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 54.7MB in the end (delta: 58.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.19ms. Allocated memory is still 142.6MB. Free memory was 54.7MB in the beginning and 113.6MB in the end (delta: -59.0MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.73ms. Allocated memory is still 142.6MB. Free memory was 113.6MB in the beginning and 112.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 277.93ms. Allocated memory is still 142.6MB. Free memory was 112.3MB in the beginning and 98.5MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 271.23ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 79.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.18ms. Allocated memory is still 142.6MB. Free memory was 79.7MB in the beginning and 79.1MB in the end (delta: 660.2kB). 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 23:36:12,698 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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 d2a3ab2b0e719126f92e3917183260b3e68c23837fef9aae0929ed461aeb4c7c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:36:14,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:36:14,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 23:36:14,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:36:14,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:36:14,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:36:14,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:36:14,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:36:14,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:36:14,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:36:14,748 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:36:14,748 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:36:14,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:36:14,749 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:36:14,749 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:36:14,749 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:36:14,749 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:36:14,749 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:36:14,749 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:36:14,749 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_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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 -> d2a3ab2b0e719126f92e3917183260b3e68c23837fef9aae0929ed461aeb4c7c [2024-12-05 23:36:14,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:36:14,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:36:14,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:36:14,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:36:14,993 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:36:14,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i [2024-12-05 23:36:17,712 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/06ffb3eea/7d43caacf19943ebb31bfea3f2cc489f/FLAG73477432e [2024-12-05 23:36:17,985 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:36:17,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_01_bad.i [2024-12-05 23:36:18,004 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/06ffb3eea/7d43caacf19943ebb31bfea3f2cc489f/FLAG73477432e [2024-12-05 23:36:18,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/data/06ffb3eea/7d43caacf19943ebb31bfea3f2cc489f [2024-12-05 23:36:18,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:36:18,266 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:36:18,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:36:18,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:36:18,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:36:18,272 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:36:18" (1/1) ... [2024-12-05 23:36:18,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11183199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:18, skipping insertion in model container [2024-12-05 23:36:18,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:36:18" (1/1) ... [2024-12-05 23:36:18,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:36:18,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:36:18,951 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:36:19,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:36:19,133 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:36:19,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19 WrapperNode [2024-12-05 23:36:19,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:36:19,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:36:19,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:36:19,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:36:19,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,173 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-12-05 23:36:19,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:36:19,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:36:19,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:36:19,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:36:19,178 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,188 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,196 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:36:19,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:36:19,197 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:36:19,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:36:19,198 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:36:19,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:36:19,223 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:36:19,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:36:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 23:36:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 23:36:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:36:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:36:19,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:36:19,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:36:19,352 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:36:19,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:36:19,448 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-05 23:36:19,448 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:36:19,486 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:36:19,486 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:36:19,486 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:19 BoogieIcfgContainer [2024-12-05 23:36:19,487 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:36:19,487 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:36:19,487 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:36:19,494 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:36:19,495 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:19" (1/1) ... [2024-12-05 23:36:19,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:36:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:36:19,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 23:36:19,536 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 23:36:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 23:36:19,538 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:36:19,539 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:36:19,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:36:19,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:36:19,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:36:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:19,677 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:36:19,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:19,772 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:36:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:36:19,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:36:19,806 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 23:36:19,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:36:19 ImpRootNode [2024-12-05 23:36:19,828 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:36:19,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:36:19,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:36:19,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:36:19,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:36:19" (3/4) ... [2024-12-05 23:36:19,832 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 23:36:19,833 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:36:19,833 INFO L158 Benchmark]: Toolchain (without parser) took 1567.06ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 54.2MB in the end (delta: 12.3MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-12-05 23:36:19,834 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:19,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 866.48ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 61.7MB in the end (delta: 4.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-12-05 23:36:19,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.90ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 59.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:19,835 INFO L158 Benchmark]: Boogie Preprocessor took 22.86ms. Allocated memory is still 92.3MB. Free memory was 59.0MB in the beginning and 57.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:19,835 INFO L158 Benchmark]: RCFGBuilder took 289.29ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 41.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:36:19,836 INFO L158 Benchmark]: CodeCheck took 341.14ms. Allocated memory is still 92.3MB. Free memory was 41.1MB in the beginning and 54.2MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:19,836 INFO L158 Benchmark]: Witness Printer took 3.57ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:36:19,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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); [L1572] 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) [L1572] 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] [L1573] CALL CWE191_Integer_Underflow__int_fgets_postdec_01_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 866.48ms. Allocated memory is still 92.3MB. Free memory was 66.2MB in the beginning and 61.7MB in the end (delta: 4.6MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.90ms. Allocated memory is still 92.3MB. Free memory was 61.7MB in the beginning and 59.0MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.86ms. Allocated memory is still 92.3MB. Free memory was 59.0MB in the beginning and 57.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.29ms. Allocated memory is still 92.3MB. Free memory was 57.3MB in the beginning and 41.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 341.14ms. Allocated memory is still 92.3MB. Free memory was 41.1MB in the beginning and 54.2MB in the end (delta: -13.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.57ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 23:36:19,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3495c1f-0ef3-473f-8933-2dc6b477f9fb/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