./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:50:58,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:50:58,918 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:50:58,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:50:58,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:50:58,942 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:50:58,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:50:58,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:50:58,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:50:58,943 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:50:58,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:50:58,944 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:50:58,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:50:58,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:50:58,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:50:58,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:50:58,946 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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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 -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-12-06 01:50:59,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:50:59,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:50:59,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:50:59,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:50:59,187 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:50:59,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-12-06 01:51:01,873 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/5ce657eff/5e7747844b3f4fccb9cf0f1bddf4536d/FLAG6c59e5898 [2024-12-06 01:51:02,212 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:51:02,213 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-12-06 01:51:02,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/5ce657eff/5e7747844b3f4fccb9cf0f1bddf4536d/FLAG6c59e5898 [2024-12-06 01:51:02,459 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/5ce657eff/5e7747844b3f4fccb9cf0f1bddf4536d [2024-12-06 01:51:02,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:51:02,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:51:02,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:02,464 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:51:02,468 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:51:02,468 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:02" (1/1) ... [2024-12-06 01:51:02,469 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e26f449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:02, skipping insertion in model container [2024-12-06 01:51:02,469 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:02" (1/1) ... [2024-12-06 01:51:02,505 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:51:03,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:03,100 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:51:03,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:03,251 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:51:03,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03 WrapperNode [2024-12-06 01:51:03,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:03,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:03,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:51:03,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:51:03,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,302 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-12-06 01:51:03,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:03,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:51:03,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:51:03,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:51:03,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,312 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,317 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,317 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,321 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:51:03,322 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:51:03,323 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:51:03,323 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:51:03,324 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:03,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:51:03,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:51:03,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:51:03,376 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:51:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:51:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:51:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:51:03,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:51:03,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:51:03,486 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:51:03,488 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:51:03,584 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-06 01:51:03,585 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:51:03,616 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:51:03,616 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:51:03,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:03 BoogieIcfgContainer [2024-12-06 01:51:03,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:51:03,617 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:51:03,617 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:51:03,627 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:51:03,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:03" (1/1) ... [2024-12-06 01:51:03,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:51:03,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:03,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:51:03,682 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:51:03,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:51:03,685 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:51:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:03,797 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:51:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:03,875 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:51:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:03,901 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:51:03,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:51:03 ImpRootNode [2024-12-06 01:51:03,922 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:51:03,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:51:03,923 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:51:03,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:51:03,923 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:03" (3/4) ... [2024-12-06 01:51:03,925 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:51:03,926 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:51:03,927 INFO L158 Benchmark]: Toolchain (without parser) took 1464.25ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 78.5MB in the end (delta: 35.7MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-06 01:51:03,927 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:03,928 INFO L158 Benchmark]: CACSL2BoogieTranslator took 788.35ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 53.9MB in the end (delta: 60.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-06 01:51:03,928 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.31ms. Allocated memory is still 142.6MB. Free memory was 53.9MB in the beginning and 112.9MB in the end (delta: -59.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-12-06 01:51:03,928 INFO L158 Benchmark]: Boogie Preprocessor took 18.37ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:03,929 INFO L158 Benchmark]: RCFGBuilder took 294.19ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 97.5MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:51:03,929 INFO L158 Benchmark]: CodeCheck took 304.88ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 79.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:51:03,929 INFO L158 Benchmark]: Witness Printer took 3.52ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 78.5MB in the end (delta: 656.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:03,932 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] --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 0.30ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 788.35ms. Allocated memory is still 142.6MB. Free memory was 114.3MB in the beginning and 53.9MB in the end (delta: 60.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.31ms. Allocated memory is still 142.6MB. Free memory was 53.9MB in the beginning and 112.9MB in the end (delta: -59.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.37ms. Allocated memory is still 142.6MB. Free memory was 112.9MB in the beginning and 111.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.19ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 97.5MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 304.88ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 79.2MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.52ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 78.5MB in the end (delta: 656.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:51:03,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:51:05,877 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:51:05,950 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:51:05,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:51:05,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:51:05,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:51:05,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:51:05,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:51:05,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:51:05,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:51:05,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:51:05,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:51:05,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:51:05,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:51:05,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:05,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:51:05,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:51:05,983 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:51:05,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:05,983 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:51:05,983 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_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/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 -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-12-06 01:51:06,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:51:06,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:51:06,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:51:06,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:51:06,243 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:51:06,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-12-06 01:51:08,932 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/2660c5d94/efc6ef8cf0dc48bb903e976a5c67407a/FLAG9468029e2 [2024-12-06 01:51:09,213 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:51:09,214 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-12-06 01:51:09,235 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/2660c5d94/efc6ef8cf0dc48bb903e976a5c67407a/FLAG9468029e2 [2024-12-06 01:51:09,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/data/2660c5d94/efc6ef8cf0dc48bb903e976a5c67407a [2024-12-06 01:51:09,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:51:09,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:51:09,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:09,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:51:09,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:51:09,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:09" (1/1) ... [2024-12-06 01:51:09,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e4c2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:09, skipping insertion in model container [2024-12-06 01:51:09,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:09" (1/1) ... [2024-12-06 01:51:09,296 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:51:09,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:10,002 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:51:10,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:10,212 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:51:10,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10 WrapperNode [2024-12-06 01:51:10,213 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:10,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:10,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:51:10,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:51:10,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,257 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-12-06 01:51:10,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:10,258 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:51:10,258 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:51:10,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:51:10,263 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,266 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,274 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,277 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,278 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,282 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:51:10,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:51:10,284 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:51:10,284 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:51:10,285 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:10,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:51:10,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:51:10,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:51:10,337 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:51:10,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:51:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:51:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:51:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:51:10,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:51:10,457 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:51:10,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:51:10,569 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-06 01:51:10,569 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:51:10,607 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:51:10,608 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:51:10,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:10 BoogieIcfgContainer [2024-12-06 01:51:10,608 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:51:10,609 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:51:10,609 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:51:10,619 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:51:10,619 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:10" (1/1) ... [2024-12-06 01:51:10,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:51:10,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:10,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-12-06 01:51:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-12-06 01:51:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:51:10,678 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:10,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:10,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:51:10,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:51:10,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:51:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:10,834 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:51:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:10,932 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:51:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:51:10,964 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:51:10,965 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-12-06 01:51:10,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:51:10 ImpRootNode [2024-12-06 01:51:10,987 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:51:10,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:51:10,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:51:10,988 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:51:10,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:10" (3/4) ... [2024-12-06 01:51:10,990 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:51:10,991 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:51:10,992 INFO L158 Benchmark]: Toolchain (without parser) took 1738.31ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 65.8MB in the beginning and 104.2MB in the end (delta: -38.4MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2024-12-06 01:51:10,992 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:10,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 958.32ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 62.2MB in the end (delta: 3.4MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-12-06 01:51:10,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.52ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:10,993 INFO L158 Benchmark]: Boogie Preprocessor took 25.14ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:10,993 INFO L158 Benchmark]: RCFGBuilder took 324.83ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.7MB in the end (delta: 15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:51:10,994 INFO L158 Benchmark]: CodeCheck took 377.92ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 104.3MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:10,994 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:10,997 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] --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 0.29ms. Allocated memory is still 83.9MB. Free memory is still 46.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 958.32ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 62.2MB in the end (delta: 3.4MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.52ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 59.4MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.14ms. Allocated memory is still 92.3MB. Free memory was 59.4MB in the beginning and 57.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 324.83ms. Allocated memory is still 92.3MB. Free memory was 57.6MB in the beginning and 41.7MB in the end (delta: 15.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 377.92ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.7MB in the beginning and 104.3MB in the end (delta: -62.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-06 01:51:11,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4bbb55c1-a0e7-4b8c-bbf9-8d108b00c8a8/bin/ukojak-verify-CZk0znPC7b/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