./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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 dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:27:32,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:27:32,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 05:27:32,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 05:27:32,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 05:27:32,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:27:32,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:27:32,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:27:32,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:27:32,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:27:32,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:27:32,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:27:32,405 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:27:32,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:27:32,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:27:32,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:27:32,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:27:32,406 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 05:27:32,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 05:27:32,406 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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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 -> dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e [2024-12-06 05:27:32,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:27:32,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:27:32,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:27:32,644 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:27:32,644 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:27:32,646 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-12-06 05:27:35,358 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/97ffdb22c/755954193d99482786ee5360f05c9169/FLAG30d4792eb [2024-12-06 05:27:35,670 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:27:35,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-12-06 05:27:35,691 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/97ffdb22c/755954193d99482786ee5360f05c9169/FLAG30d4792eb [2024-12-06 05:27:35,706 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/97ffdb22c/755954193d99482786ee5360f05c9169 [2024-12-06 05:27:35,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:27:35,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:27:35,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:27:35,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:27:35,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:27:35,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:27:35" (1/1) ... [2024-12-06 05:27:35,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de40856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:35, skipping insertion in model container [2024-12-06 05:27:35,718 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:27:35" (1/1) ... [2024-12-06 05:27:35,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:27:36,484 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:27:36,493 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:27:36,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:27:36,678 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:27:36,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36 WrapperNode [2024-12-06 05:27:36,679 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:27:36,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:27:36,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:27:36,680 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:27:36,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,715 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-12-06 05:27:36,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:27:36,715 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:27:36,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:27:36,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:27:36,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,724 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,724 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,727 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:27:36,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:27:36,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:27:36,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:27:36,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:36" (1/1) ... [2024-12-06 05:27:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:27:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:27:36,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:27:36,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:27:36,781 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:27:36,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:27:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:27:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:27:36,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:27:36,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 05:27:36,889 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:27:36,890 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:27:36,975 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-06 05:27:36,975 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:27:37,001 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:27:37,001 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:27:37,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:37 BoogieIcfgContainer [2024-12-06 05:27:37,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:27:37,002 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:27:37,002 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:27:37,009 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:27:37,009 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:37" (1/1) ... [2024-12-06 05:27:37,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:27:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:27:37,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 05:27:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 05:27:37,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:27:37,054 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:27:37,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:27:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:27:37,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:27:37,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:27:37,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2024-12-06 05:27:37,257 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 05:27:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:27:37,258 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:27:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 05:27:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:37,296 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:27:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:37,369 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:27:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:37,396 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 05:27:37,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:27:37 ImpRootNode [2024-12-06 05:27:37,419 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:27:37,420 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:27:37,420 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:27:37,420 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:27:37,421 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:37" (3/4) ... [2024-12-06 05:27:37,423 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:27:37,424 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:27:37,424 INFO L158 Benchmark]: Toolchain (without parser) took 1714.21ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 62.0MB in the end (delta: 52.6MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-12-06 05:27:37,425 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:37,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 967.63ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 105.7MB in the end (delta: 8.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-12-06 05:27:37,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 05:27:37,426 INFO L158 Benchmark]: Boogie Preprocessor took 16.31ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:37,426 INFO L158 Benchmark]: RCFGBuilder took 269.13ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 87.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:27:37,426 INFO L158 Benchmark]: CodeCheck took 417.52ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 62.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 05:27:37,427 INFO L158 Benchmark]: Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 62.0MB in the end (delta: 579.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:37,429 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_13_bad() [L1550] int data; [L1551] data = 0 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] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 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] [L1569] --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 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 967.63ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 105.7MB in the end (delta: 8.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 103.0MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.31ms. Allocated memory is still 142.6MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.13ms. Allocated memory is still 142.6MB. Free memory was 101.7MB in the beginning and 87.7MB in the end (delta: 14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 417.52ms. Allocated memory is still 142.6MB. Free memory was 87.7MB in the beginning and 62.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.65ms. Allocated memory is still 142.6MB. Free memory was 62.6MB in the beginning and 62.0MB in the end (delta: 579.4kB). 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 05:27:37,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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 dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 05:27:39,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 05:27:39,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 05:27:39,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 05:27:39,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 05:27:39,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 05:27:39,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 05:27:39,522 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 05:27:39,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 05:27:39,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 05:27:39,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 05:27:39,524 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 05:27:39,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:27:39,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 05:27:39,524 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 05:27:39,525 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 05:27:39,525 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 05:27:39,525 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_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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 -> dfeb487d17793275cc8e7428ab2afde196b4f2aeed0429cf92ffa906b791329e [2024-12-06 05:27:39,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 05:27:39,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 05:27:39,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 05:27:39,795 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 05:27:39,795 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 05:27:39,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-12-06 05:27:42,527 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/452c59bbe/3244e3ec281d4429a7d831fc5b1da40d/FLAG76a3ee3de [2024-12-06 05:27:42,814 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 05:27:42,814 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_13_bad.i [2024-12-06 05:27:42,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/452c59bbe/3244e3ec281d4429a7d831fc5b1da40d/FLAG76a3ee3de [2024-12-06 05:27:42,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/data/452c59bbe/3244e3ec281d4429a7d831fc5b1da40d [2024-12-06 05:27:42,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 05:27:42,854 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 05:27:42,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 05:27:42,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 05:27:42,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 05:27:42,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:27:42" (1/1) ... [2024-12-06 05:27:42,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cef9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:42, skipping insertion in model container [2024-12-06 05:27:42,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:27:42" (1/1) ... [2024-12-06 05:27:42,899 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 05:27:43,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:27:43,602 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 05:27:43,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 05:27:43,809 INFO L204 MainTranslator]: Completed translation [2024-12-06 05:27:43,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43 WrapperNode [2024-12-06 05:27:43,809 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 05:27:43,810 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 05:27:43,810 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 05:27:43,810 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 05:27:43,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,850 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-12-06 05:27:43,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 05:27:43,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 05:27:43,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 05:27:43,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 05:27:43,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,877 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 05:27:43,878 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 05:27:43,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 05:27:43,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 05:27:43,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:27:43" (1/1) ... [2024-12-06 05:27:43,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 05:27:43,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 05:27:43,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 05:27:43,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 05:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 05:27:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 05:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 05:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 05:27:43,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 05:27:43,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 05:27:44,101 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 05:27:44,103 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 05:27:44,234 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-06 05:27:44,234 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 05:27:44,276 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 05:27:44,277 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 05:27:44,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:44 BoogieIcfgContainer [2024-12-06 05:27:44,277 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 05:27:44,278 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 05:27:44,278 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 05:27:44,290 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 05:27:44,291 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:44" (1/1) ... [2024-12-06 05:27:44,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 05:27:44,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:27:44,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 05:27:44,357 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 05:27:44,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 05:27:44,362 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:27:44,363 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:27:44,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:27:44,366 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:27:44,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 05:27:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:27:44,496 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 05:27:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 05:27:44,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 05:27:44,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 05:27:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 05:27:44,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-06 05:27:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 05:27:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2024-12-06 05:27:44,651 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-12-06 05:27:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 05:27:44,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 05:27:44,652 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 05:27:44,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 05:27:44,655 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 05:27:44,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 05:27:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:44,799 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:27:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:44,891 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 05:27:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 05:27:44,922 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 05:27:44,922 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 05:27:44,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 05:27:44 ImpRootNode [2024-12-06 05:27:44,944 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 05:27:44,944 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 05:27:44,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 05:27:44,944 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 05:27:44,945 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:27:44" (3/4) ... [2024-12-06 05:27:44,947 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 05:27:44,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 05:27:44,948 INFO L158 Benchmark]: Toolchain (without parser) took 2093.58ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 66.5MB in the beginning and 88.0MB in the end (delta: -21.5MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-12-06 05:27:44,948 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:44,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 954.04ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.9MB in the end (delta: 3.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2024-12-06 05:27:44,949 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.10ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:44,949 INFO L158 Benchmark]: Boogie Preprocessor took 26.89ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:44,949 INFO L158 Benchmark]: RCFGBuilder took 398.88ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 42.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 05:27:44,950 INFO L158 Benchmark]: CodeCheck took 665.78ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 42.1MB in the beginning and 88.0MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:44,950 INFO L158 Benchmark]: Witness Printer took 3.20ms. Allocated memory is still 134.2MB. Free memory was 88.0MB in the beginning and 88.0MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 05:27:44,953 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_predec_13_bad() [L1550] int data; [L1551] data = 0 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] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1566] COND TRUE GLOBAL_CONST_FIVE==5 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] [L1569] --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 0.47ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 954.04ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 62.9MB in the end (delta: 3.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.10ms. Allocated memory is still 92.3MB. Free memory was 62.9MB in the beginning and 60.1MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.89ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 398.88ms. Allocated memory is still 92.3MB. Free memory was 58.4MB in the beginning and 42.1MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 665.78ms. Allocated memory was 92.3MB in the beginning and 134.2MB in the end (delta: 41.9MB). Free memory was 42.1MB in the beginning and 88.0MB in the end (delta: -45.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.20ms. Allocated memory is still 134.2MB. Free memory was 88.0MB in the beginning and 88.0MB 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 05:27:44,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_164ffc4e-a05a-4eb8-9e30-5b3fc8b5eda6/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