./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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 cb4ace1a7cfed6f6ac9faffd64b77c182c41e6e79bcda2d23ae0282c3746a3eb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:30:06,061 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:30:06,118 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-06 01:30:06,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:30:06,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:30:06,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:30:06,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:30:06,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:30:06,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:30:06,144 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:30:06,144 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:30:06,145 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:30:06,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:30:06,145 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:30:06,145 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:30:06,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:30:06,146 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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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 -> cb4ace1a7cfed6f6ac9faffd64b77c182c41e6e79bcda2d23ae0282c3746a3eb [2024-12-06 01:30:06,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:30:06,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:30:06,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:30:06,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:30:06,392 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:30:06,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i [2024-12-06 01:30:09,039 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/6fcb13866/991e213118f54871bd746d475199f3f5/FLAGe3f9a2afe [2024-12-06 01:30:09,340 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:30:09,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i [2024-12-06 01:30:09,359 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/6fcb13866/991e213118f54871bd746d475199f3f5/FLAGe3f9a2afe [2024-12-06 01:30:09,372 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/6fcb13866/991e213118f54871bd746d475199f3f5 [2024-12-06 01:30:09,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:30:09,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:30:09,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:30:09,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:30:09,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:30:09,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:30:09" (1/1) ... [2024-12-06 01:30:09,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff4f46a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:09, skipping insertion in model container [2024-12-06 01:30:09,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:30:09" (1/1) ... [2024-12-06 01:30:09,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:30:10,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:30:10,054 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:30:10,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:30:10,217 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:30:10,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10 WrapperNode [2024-12-06 01:30:10,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:30:10,219 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:30:10,219 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:30:10,219 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:30:10,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,241 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,258 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-12-06 01:30:10,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:30:10,259 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:30:10,259 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:30:10,259 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:30:10,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,272 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,273 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,275 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,276 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,277 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,279 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:30:10,280 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:30:10,280 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:30:10,280 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:30:10,281 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:30:10,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:30:10,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:30:10,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:30:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:30:10,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:30:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:30:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:30:10,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:30:10,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:30:10,439 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:30:10,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:30:10,535 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-12-06 01:30:10,535 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:30:10,563 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:30:10,563 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:30:10,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:10 BoogieIcfgContainer [2024-12-06 01:30:10,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:30:10,564 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:30:10,564 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:30:10,572 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:30:10,572 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:10" (1/1) ... [2024-12-06 01:30:10,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:30:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:30:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 01:30:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 01:30:10,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:30:10,629 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:30:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:30:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:30:10,824 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 01:30:10,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:30:10,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 21 transitions. [2024-12-06 01:30:10,861 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 01:30:10,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:30:10,861 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:30:10,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:30:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:10,896 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:30:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:10,968 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:30:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:10,995 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 01:30:11,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:30:11 ImpRootNode [2024-12-06 01:30:11,020 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:30:11,020 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:30:11,020 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:30:11,020 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:30:11,021 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:10" (3/4) ... [2024-12-06 01:30:11,023 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:30:11,024 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:30:11,025 INFO L158 Benchmark]: Toolchain (without parser) took 1649.98ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 60.6MB in the end (delta: 54.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-12-06 01:30:11,025 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:11,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 842.43ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 105.3MB in the end (delta: 9.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-12-06 01:30:11,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.02ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 102.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:30:11,026 INFO L158 Benchmark]: Boogie Preprocessor took 20.30ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.8MB in the end (delta: 582.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:11,027 INFO L158 Benchmark]: RCFGBuilder took 283.52ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 87.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:30:11,027 INFO L158 Benchmark]: CodeCheck took 455.45ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 61.2MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-06 01:30:11,027 INFO L158 Benchmark]: Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 60.6MB in the end (delta: 582.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:11,029 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, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 7 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_10_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 \read(globalTrue) [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 \read(globalTrue) 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 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 842.43ms. Allocated memory is still 142.6MB. Free memory was 114.7MB in the beginning and 105.3MB in the end (delta: 9.4MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.02ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 102.4MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.30ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.8MB in the end (delta: 582.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 283.52ms. Allocated memory is still 142.6MB. Free memory was 101.8MB in the beginning and 87.5MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 455.45ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 61.2MB in the end (delta: 26.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.81ms. Allocated memory is still 142.6MB. Free memory was 61.2MB in the beginning and 60.6MB in the end (delta: 582.7kB). 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 01:30:11,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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 cb4ace1a7cfed6f6ac9faffd64b77c182c41e6e79bcda2d23ae0282c3746a3eb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:30:12,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:30:13,043 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-06 01:30:13,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:30:13,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:30:13,072 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:30:13,072 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:30:13,072 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:30:13,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:30:13,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:30:13,073 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:30:13,074 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:30:13,074 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:30:13,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:30:13,074 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:30:13,075 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:30:13,075 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:30:13,075 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:30:13,075 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:30:13,075 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:30:13,075 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_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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 -> cb4ace1a7cfed6f6ac9faffd64b77c182c41e6e79bcda2d23ae0282c3746a3eb [2024-12-06 01:30:13,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:30:13,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:30:13,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:30:13,334 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:30:13,335 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:30:13,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i [2024-12-06 01:30:16,027 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/2de6c464e/57215ed48bd9465aaf134b56935cc692/FLAG6a112c1ef [2024-12-06 01:30:16,327 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:30:16,327 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_10_bad.i [2024-12-06 01:30:16,346 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/2de6c464e/57215ed48bd9465aaf134b56935cc692/FLAG6a112c1ef [2024-12-06 01:30:16,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/data/2de6c464e/57215ed48bd9465aaf134b56935cc692 [2024-12-06 01:30:16,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:30:16,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:30:16,363 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:30:16,363 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:30:16,367 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:30:16,368 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:30:16" (1/1) ... [2024-12-06 01:30:16,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142803b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:16, skipping insertion in model container [2024-12-06 01:30:16,368 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:30:16" (1/1) ... [2024-12-06 01:30:16,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:30:17,024 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:30:17,034 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:30:17,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:30:17,256 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:30:17,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17 WrapperNode [2024-12-06 01:30:17,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:30:17,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:30:17,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:30:17,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:30:17,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,300 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2024-12-06 01:30:17,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:30:17,301 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:30:17,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:30:17,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:30:17,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,310 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,310 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,317 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,323 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:30:17,327 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:30:17,327 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:30:17,327 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:30:17,328 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:30:17,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:30:17,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:30:17,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:30:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-06 01:30:17,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-06 01:30:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:30:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:30:17,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:30:17,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:30:17,490 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:30:17,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:30:17,606 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-12-06 01:30:17,606 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:30:17,641 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:30:17,641 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:30:17,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:17 BoogieIcfgContainer [2024-12-06 01:30:17,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:30:17,642 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:30:17,642 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:30:17,652 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:30:17,652 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:17" (1/1) ... [2024-12-06 01:30:17,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:30:17,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:30:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-06 01:30:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-06 01:30:17,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 01:30:17,706 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:30:17,707 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:30:17,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:30:17,709 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:30:17,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:30:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:30:17,810 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:30:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:30:17,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-06 01:30:17,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:30:17,870 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 01:30:17,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 01:30:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:30:17,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2024-12-06 01:30:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-06 01:30:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:30:17,913 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:30:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:30:17,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:30:17,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:30:17,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 01:30:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:18,035 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:30:18,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:18,119 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:30:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:30:18,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 01:30:18,150 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 01:30:18,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:30:18 ImpRootNode [2024-12-06 01:30:18,175 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:30:18,175 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:30:18,175 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:30:18,176 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:30:18,176 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:30:17" (3/4) ... [2024-12-06 01:30:18,178 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-06 01:30:18,179 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:30:18,180 INFO L158 Benchmark]: Toolchain (without parser) took 1817.68ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 66.9MB in the beginning and 97.8MB in the end (delta: -30.9MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-12-06 01:30:18,180 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:18,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.04ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 61.6MB in the end (delta: 5.1MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-12-06 01:30:18,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.84ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:18,181 INFO L158 Benchmark]: Boogie Preprocessor took 25.41ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:18,182 INFO L158 Benchmark]: RCFGBuilder took 314.29ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 41.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:30:18,182 INFO L158 Benchmark]: CodeCheck took 532.70ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 98.4MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:18,182 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.8MB in the end (delta: 529.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:30:18,184 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 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, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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_10_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 \read(globalTrue) [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 \read(globalTrue) 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 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.04ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 61.6MB in the end (delta: 5.1MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.84ms. Allocated memory is still 92.3MB. Free memory was 61.6MB in the beginning and 58.9MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.41ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 57.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 314.29ms. Allocated memory is still 92.3MB. Free memory was 57.1MB in the beginning and 41.1MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 532.70ms. Allocated memory was 92.3MB in the beginning and 142.6MB in the end (delta: 50.3MB). Free memory was 41.1MB in the beginning and 98.4MB in the end (delta: -57.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 97.8MB in the end (delta: 529.0kB). 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 01:30:18,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6eb6f684-0ae7-415c-832d-083ff07fdeb4/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