./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_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_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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_25713a63-dde8-420f-94e8-50ff8baee9eb/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:41:48,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:41:48,281 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 22:41:48,286 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 22:41:48,286 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 22:41:48,309 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:41:48,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:41:48,310 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:41:48,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:41:48,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:41:48,311 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:41:48,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:41:48,312 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:41:48,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:41:48,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:41:48,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:41:48,313 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 22:41:48,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 22:41:48,313 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_25713a63-dde8-420f-94e8-50ff8baee9eb/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 -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-12-05 22:41:48,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:41:48,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:41:48,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:41:48,581 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:41:48,581 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:41:48,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-12-05 22:41:51,278 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/119ad6117/587b7eeebbae4544b051e96d8ae90f57/FLAG62237e06c [2024-12-05 22:41:51,578 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:41:51,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-12-05 22:41:51,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/119ad6117/587b7eeebbae4544b051e96d8ae90f57/FLAG62237e06c [2024-12-05 22:41:51,613 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/119ad6117/587b7eeebbae4544b051e96d8ae90f57 [2024-12-05 22:41:51,615 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:41:51,617 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:41:51,618 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:41:51,618 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:41:51,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:41:51,624 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:41:51" (1/1) ... [2024-12-05 22:41:51,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699be6f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:51, skipping insertion in model container [2024-12-05 22:41:51,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:41:51" (1/1) ... [2024-12-05 22:41:51,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:41:52,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:41:52,389 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:41:52,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:41:52,563 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:41:52,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52 WrapperNode [2024-12-05 22:41:52,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:41:52,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:41:52,564 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:41:52,564 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:41:52,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,602 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2024-12-05 22:41:52,603 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:41:52,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:41:52,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:41:52,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:41:52,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,611 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,616 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,620 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,621 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:41:52,622 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:41:52,622 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:41:52,622 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:41:52,623 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:41:52,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:41:52,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:41:52,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:41:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:41:52,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:41:52,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 22:41:52,774 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:41:52,776 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:41:52,878 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-05 22:41:52,878 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:41:52,914 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:41:52,914 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:41:52,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:41:52 BoogieIcfgContainer [2024-12-05 22:41:52,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:41:52,916 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:41:52,916 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:41:52,925 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:41:52,926 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:41:52" (1/1) ... [2024-12-05 22:41:52,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:41:52,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:41:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 22:41:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 22:41:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:41:52,992 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:41:52,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 22:41:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:41:53,119 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:41:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:41:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:41:53,199 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:41:53,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:41:53,228 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:41:53,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:41:53 ImpRootNode [2024-12-05 22:41:53,251 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:41:53,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:41:53,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:41:53,252 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:41:53,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:41:52" (3/4) ... [2024-12-05 22:41:53,255 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:41:53,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:41:53,257 INFO L158 Benchmark]: Toolchain (without parser) took 1640.46ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 74.5MB in the end (delta: 39.2MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2024-12-05 22:41:53,257 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:41:53,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 945.61ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 111.6MB in the end (delta: 1.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-12-05 22:41:53,258 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.67ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 108.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:41:53,259 INFO L158 Benchmark]: Boogie Preprocessor took 18.28ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.7MB in the end (delta: 593.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:41:53,259 INFO L158 Benchmark]: RCFGBuilder took 293.13ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 93.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:41:53,259 INFO L158 Benchmark]: CodeCheck took 335.90ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 74.5MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:41:53,260 INFO L158 Benchmark]: Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:41:53,262 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1573] 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) [L1573] 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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] 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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 945.61ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 111.6MB in the end (delta: 1.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.67ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 108.3MB in the end (delta: 3.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.28ms. Allocated memory is still 142.6MB. Free memory was 108.3MB in the beginning and 107.7MB in the end (delta: 593.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.13ms. Allocated memory is still 142.6MB. Free memory was 107.7MB in the beginning and 93.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 335.90ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 74.5MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.11ms. Allocated memory is still 142.6MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:41:53,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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_25713a63-dde8-420f-94e8-50ff8baee9eb/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 22:41:55,303 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 22:41:55,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 22:41:55,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 22:41:55,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 22:41:55,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 22:41:55,414 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 22:41:55,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 22:41:55,415 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 22:41:55,415 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 22:41:55,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:41:55,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 22:41:55,416 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 22:41:55,416 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_25713a63-dde8-420f-94e8-50ff8baee9eb/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 -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-12-05 22:41:55,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 22:41:55,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 22:41:55,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 22:41:55,679 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 22:41:55,679 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 22:41:55,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-12-05 22:41:58,369 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/084d0727d/b4915e08a974419fbcae4654f6df2a74/FLAG54f8bfdd0 [2024-12-05 22:41:58,650 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 22:41:58,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-12-05 22:41:58,672 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/084d0727d/b4915e08a974419fbcae4654f6df2a74/FLAG54f8bfdd0 [2024-12-05 22:41:58,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/data/084d0727d/b4915e08a974419fbcae4654f6df2a74 [2024-12-05 22:41:58,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 22:41:58,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 22:41:58,692 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 22:41:58,692 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 22:41:58,697 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 22:41:58,698 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:41:58" (1/1) ... [2024-12-05 22:41:58,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7553cfae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:58, skipping insertion in model container [2024-12-05 22:41:58,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 10:41:58" (1/1) ... [2024-12-05 22:41:58,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 22:41:59,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:41:59,488 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 22:41:59,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 22:41:59,726 INFO L204 MainTranslator]: Completed translation [2024-12-05 22:41:59,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59 WrapperNode [2024-12-05 22:41:59,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 22:41:59,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 22:41:59,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 22:41:59,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 22:41:59,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,774 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2024-12-05 22:41:59,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 22:41:59,774 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 22:41:59,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 22:41:59,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 22:41:59,781 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,792 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 22:41:59,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 22:41:59,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 22:41:59,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 22:41:59,803 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 10:41:59" (1/1) ... [2024-12-05 22:41:59,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 22:41:59,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 22:41:59,834 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 22:41:59,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 22:41:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 22:41:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 22:41:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 22:41:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 22:41:59,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 22:41:59,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 22:41:59,977 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 22:41:59,978 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 22:42:00,092 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 22:42:00,092 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 22:42:00,134 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 22:42:00,134 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 22:42:00,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:42:00 BoogieIcfgContainer [2024-12-05 22:42:00,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 22:42:00,135 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 22:42:00,135 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 22:42:00,144 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 22:42:00,144 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:42:00" (1/1) ... [2024-12-05 22:42:00,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 22:42:00,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 22:42:00,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-05 22:42:00,188 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-05 22:42:00,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 22:42:00,191 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 22:42:00,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 22:42:00,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 22:42:00,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 22:42:00,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 22:42:00,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:42:00,346 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:42:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:42:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:42:00,465 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 22:42:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 22:42:00,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 22:42:00,503 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-05 22:42:00,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 10:42:00 ImpRootNode [2024-12-05 22:42:00,530 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 22:42:00,531 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 22:42:00,531 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 22:42:00,531 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 22:42:00,532 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 10:42:00" (3/4) ... [2024-12-05 22:42:00,534 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 22:42:00,535 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 22:42:00,536 INFO L158 Benchmark]: Toolchain (without parser) took 1845.54ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 53.3MB in the end (delta: 13.2MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-12-05 22:42:00,537 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:42:00,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1034.50ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 61.6MB in the end (delta: 4.9MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-12-05 22:42:00,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.97ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:42:00,538 INFO L158 Benchmark]: Boogie Preprocessor took 26.85ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:42:00,538 INFO L158 Benchmark]: RCFGBuilder took 332.61ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 40.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 22:42:00,539 INFO L158 Benchmark]: CodeCheck took 395.25ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 53.3MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:42:00,539 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 22:42:00,542 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1550] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, 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 0.31ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1034.50ms. Allocated memory is still 92.3MB. Free memory was 66.4MB in the beginning and 61.6MB in the end (delta: 4.9MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.97ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.85ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.61ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 40.6MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 395.25ms. Allocated memory is still 92.3MB. Free memory was 40.6MB in the beginning and 53.3MB in the end (delta: -12.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 53.3MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 22:42:00,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25713a63-dde8-420f-94e8-50ff8baee9eb/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