./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_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_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3 --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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:14:35,169 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:14:35,295 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:14:35,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:14:35,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:14:35,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:14:35,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:14:35,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:14:35,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:14:35,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:14:35,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:14:35,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:14:35,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:14:35,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:14:35,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:14:35,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:14:35,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:14:35,356 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:14:35,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:14:35,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:14:35,356 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:14:35,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:14:35,357 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:14:35,357 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:14:35,357 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:14:35,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:14:35,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:14:35,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:14:35,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:14:35,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:14:35,358 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:14:35,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:14:35,358 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_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3 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 -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-25 02:14:35,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:14:35,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:14:35,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:14:35,789 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:14:35,789 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:14:35,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-25 02:14:39,164 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/1cb0c9ebf/a8b9577b3ed5400ab59bc9ccd4f34e0a/FLAG40d46236f [2024-11-25 02:14:39,722 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:14:39,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-25 02:14:39,765 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/1cb0c9ebf/a8b9577b3ed5400ab59bc9ccd4f34e0a/FLAG40d46236f [2024-11-25 02:14:40,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/1cb0c9ebf/a8b9577b3ed5400ab59bc9ccd4f34e0a [2024-11-25 02:14:40,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:14:40,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:14:40,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:14:40,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:14:40,248 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:14:40,249 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:14:40" (1/1) ... [2024-11-25 02:14:40,250 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fad9a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:40, skipping insertion in model container [2024-11-25 02:14:40,251 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:14:40" (1/1) ... [2024-11-25 02:14:40,293 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:14:41,395 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:14:41,406 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:14:41,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:14:41,644 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:14:41,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41 WrapperNode [2024-11-25 02:14:41,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:14:41,647 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:14:41,647 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:14:41,647 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:14:41,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,696 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-25 02:14:41,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:14:41,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:14:41,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:14:41,698 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:14:41,706 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,715 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,721 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,724 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,725 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:14:41,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:14:41,730 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:14:41,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:14:41,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:41" (1/1) ... [2024-11-25 02:14:41,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:14:41,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:14:41,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:14:41,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:14:41,805 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:14:41,805 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:14:41,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:14:41,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:14:41,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:14:41,997 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:14:41,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:14:42,195 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 02:14:42,195 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:14:42,253 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:14:42,254 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:14:42,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:42 BoogieIcfgContainer [2024-11-25 02:14:42,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:14:42,255 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:14:42,255 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:14:42,270 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:14:42,272 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:42" (1/1) ... [2024-11-25 02:14:42,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:14:42,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:14:42,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:14:42,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:14:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:14:42,347 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:14:42,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:14:42,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:42,556 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:14:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:42,780 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:14:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:42,840 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:14:42,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:14:42 ImpRootNode [2024-11-25 02:14:42,889 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:14:42,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:14:42,890 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:14:42,891 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:14:42,897 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:42" (3/4) ... [2024-11-25 02:14:42,900 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:14:42,903 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:14:42,905 INFO L158 Benchmark]: Toolchain (without parser) took 2663.21ms. Allocated memory is still 142.6MB. Free memory was 102.6MB in the beginning and 68.1MB in the end (delta: 34.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-25 02:14:42,905 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:42,906 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1403.03ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 41.7MB in the end (delta: 60.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-25 02:14:42,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.94ms. Allocated memory is still 142.6MB. Free memory was 41.7MB in the beginning and 39.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:14:42,911 INFO L158 Benchmark]: Boogie Preprocessor took 31.97ms. Allocated memory is still 142.6MB. Free memory was 39.0MB in the beginning and 38.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:42,911 INFO L158 Benchmark]: RCFGBuilder took 524.44ms. Allocated memory is still 142.6MB. Free memory was 38.0MB in the beginning and 91.3MB in the end (delta: -53.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2024-11-25 02:14:42,912 INFO L158 Benchmark]: CodeCheck took 634.75ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 68.1MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:14:42,912 INFO L158 Benchmark]: Witness Printer took 13.42ms. Allocated memory is still 142.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:42,919 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={31599:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] --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 0.45ms. Allocated memory is still 167.8MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1403.03ms. Allocated memory is still 142.6MB. Free memory was 102.3MB in the beginning and 41.7MB in the end (delta: 60.5MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.94ms. Allocated memory is still 142.6MB. Free memory was 41.7MB in the beginning and 39.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.97ms. Allocated memory is still 142.6MB. Free memory was 39.0MB in the beginning and 38.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 524.44ms. Allocated memory is still 142.6MB. Free memory was 38.0MB in the beginning and 91.3MB in the end (delta: -53.3MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * CodeCheck took 634.75ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 68.1MB in the end (delta: 23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 13.42ms. Allocated memory is still 142.6MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:14:42,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3 --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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:14:46,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:14:46,202 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:14:46,254 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:14:46,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:14:46,257 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:14:46,258 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:14:46,258 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:14:46,259 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:14:46,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:14:46,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:14:46,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:14:46,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:14:46,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:14:46,261 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:14:46,261 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:14:46,262 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:14:46,262 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:14:46,262 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:14:46,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:14:46,263 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:14:46,263 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:14:46,263 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:14:46,263 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:14:46,263 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:14:46,263 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:14:46,264 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:14:46,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:14:46,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:14:46,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:14:46,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:14:46,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:14:46,266 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:14:46,266 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:14:46,266 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:14:46,266 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_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3 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 -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-25 02:14:46,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:14:46,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:14:46,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:14:46,727 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:14:46,728 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:14:46,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-25 02:14:49,991 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/b6b20831c/f823d7234a8c48b7ad47e7081f3f8fbb/FLAG0d39d8e46 [2024-11-25 02:14:50,615 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:14:50,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-25 02:14:50,646 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/b6b20831c/f823d7234a8c48b7ad47e7081f3f8fbb/FLAG0d39d8e46 [2024-11-25 02:14:50,675 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/data/b6b20831c/f823d7234a8c48b7ad47e7081f3f8fbb [2024-11-25 02:14:50,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:14:50,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:14:50,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:14:50,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:14:50,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:14:50,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:14:50" (1/1) ... [2024-11-25 02:14:50,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306cebda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:50, skipping insertion in model container [2024-11-25 02:14:50,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:14:50" (1/1) ... [2024-11-25 02:14:50,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:14:51,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:14:51,839 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:14:51,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:14:52,194 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:14:52,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52 WrapperNode [2024-11-25 02:14:52,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:14:52,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:14:52,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:14:52,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:14:52,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,284 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-25 02:14:52,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:14:52,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:14:52,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:14:52,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:14:52,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,323 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,337 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,342 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:14:52,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:14:52,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:14:52,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:14:52,352 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:52,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:14:52,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:14:52,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:14:52,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:14:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:14:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:14:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:14:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:14:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:14:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:14:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:14:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 02:14:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:14:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 02:14:52,684 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:14:52,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:14:52,892 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 02:14:52,892 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:14:52,974 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:14:52,974 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:14:52,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:52 BoogieIcfgContainer [2024-11-25 02:14:52,975 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:14:52,976 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:14:52,976 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:14:52,989 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:14:52,990 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:52" (1/1) ... [2024-11-25 02:14:53,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:14:53,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:14:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:14:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:14:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:14:53,076 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:14:53,076 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:14:53,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:14:53,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:14:53,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:14:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:53,403 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:14:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:53,717 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:14:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:14:53,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:14:53,825 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 02:14:53,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:14:53 ImpRootNode [2024-11-25 02:14:53,870 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:14:53,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:14:53,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:14:53,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:14:53,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:14:52" (3/4) ... [2024-11-25 02:14:53,879 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:14:53,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:14:53,882 INFO L158 Benchmark]: Toolchain (without parser) took 3201.12ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 31.0MB in the end (delta: 26.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-25 02:14:53,883 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:53,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1513.78ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 50.9MB in the end (delta: 6.7MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-25 02:14:53,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.56ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 47.9MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:53,884 INFO L158 Benchmark]: Boogie Preprocessor took 62.58ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:14:53,885 INFO L158 Benchmark]: RCFGBuilder took 624.73ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 52.6MB in the end (delta: -6.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2024-11-25 02:14:53,885 INFO L158 Benchmark]: CodeCheck took 894.20ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 31.0MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:14:53,886 INFO L158 Benchmark]: Witness Printer took 7.28ms. Allocated memory is still 83.9MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:14:53,896 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: 0.8s, 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, 0.1s 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] --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 0.39ms. Allocated memory is still 83.9MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1513.78ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 50.9MB in the end (delta: 6.7MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.56ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 47.9MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.58ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 624.73ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 52.6MB in the end (delta: -6.5MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * CodeCheck took 894.20ms. Allocated memory is still 83.9MB. Free memory was 52.6MB in the beginning and 31.0MB in the end (delta: 21.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.28ms. Allocated memory is still 83.9MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:14:53,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c5edc2e-ad75-47e6-ad8e-a5928aa1cd08/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample