./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_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_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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_81f2629e-7e64-4495-a7f8-406cf450c19c/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 c4cb47198f264b062dc36e4b377ad0aaadbdda18ccf1266f47e11aa66017b256 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:42:59,408 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:42:59,472 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-12-05 21:42:59,476 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:42:59,477 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:42:59,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:42:59,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:42:59,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:42:59,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:42:59,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:42:59,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:42:59,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:42:59,501 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:42:59,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:42:59,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:42:59,502 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:42:59,503 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:42:59,503 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:42:59,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:42:59,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:42:59,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:42:59,503 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:42:59,503 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:42:59,504 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:42:59,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:42:59,504 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_81f2629e-7e64-4495-a7f8-406cf450c19c/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 -> c4cb47198f264b062dc36e4b377ad0aaadbdda18ccf1266f47e11aa66017b256 [2024-12-05 21:42:59,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:42:59,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:42:59,754 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:42:59,756 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:42:59,756 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:42:59,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i [2024-12-05 21:43:02,546 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/6473d1839/95116525df9e43b884e0e051264b9b90/FLAGb324a8e46 [2024-12-05 21:43:02,883 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:43:02,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i [2024-12-05 21:43:02,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/6473d1839/95116525df9e43b884e0e051264b9b90/FLAGb324a8e46 [2024-12-05 21:43:02,919 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/6473d1839/95116525df9e43b884e0e051264b9b90 [2024-12-05 21:43:02,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:43:02,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:43:02,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:02,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:43:02,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:43:02,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:02" (1/1) ... [2024-12-05 21:43:02,929 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a6c25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:02, skipping insertion in model container [2024-12-05 21:43:02,929 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:02" (1/1) ... [2024-12-05 21:43:02,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:43:03,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:03,819 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:43:03,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:04,022 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:43:04,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04 WrapperNode [2024-12-05 21:43:04,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:04,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:04,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:43:04,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:43:04,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,069 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-12-05 21:43:04,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:04,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:43:04,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:43:04,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:43:04,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,081 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,087 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,092 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,093 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:43:04,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:43:04,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:43:04,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:43:04,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:04,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:43:04,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:43:04,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:43:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 21:43:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 21:43:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:43:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:43:04,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:43:04,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:43:04,287 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:43:04,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:43:04,415 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 21:43:04,415 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:43:04,452 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:43:04,452 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-05 21:43:04,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:04 BoogieIcfgContainer [2024-12-05 21:43:04,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:43:04,453 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:43:04,454 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:43:04,463 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:43:04,463 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:04" (1/1) ... [2024-12-05 21:43:04,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:43:04,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:04,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-05 21:43:04,518 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-05 21:43:04,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:43:04,521 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:04,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:04,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:04,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:04,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-05 21:43:04,708 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-05 21:43:04,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 21:43:04,709 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:43:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:04,764 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:04,848 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:04,877 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-05 21:43:04,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:43:04 ImpRootNode [2024-12-05 21:43:04,903 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:43:04,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:43:04,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:43:04,904 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:43:04,904 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:04" (3/4) ... [2024-12-05 21:43:04,906 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:43:04,907 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:43:04,908 INFO L158 Benchmark]: Toolchain (without parser) took 1985.62ms. Allocated memory is still 142.6MB. Free memory was 114.1MB in the beginning and 74.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2024-12-05 21:43:04,908 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:04,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1098.84ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 54.6MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-05 21:43:04,909 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.28ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 113.1MB in the end (delta: -58.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-12-05 21:43:04,910 INFO L158 Benchmark]: Boogie Preprocessor took 26.11ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 111.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:04,910 INFO L158 Benchmark]: RCFGBuilder took 356.35ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 98.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:43:04,911 INFO L158 Benchmark]: CodeCheck took 449.58ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 74.3MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-05 21:43:04,911 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 142.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:04,914 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, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1571]: 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_multiply_16_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] [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) [L1569] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] data * 2 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 0.36ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1098.84ms. Allocated memory is still 142.6MB. Free memory was 113.9MB in the beginning and 54.6MB in the end (delta: 59.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.28ms. Allocated memory is still 142.6MB. Free memory was 54.6MB in the beginning and 113.1MB in the end (delta: -58.5MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.11ms. Allocated memory is still 142.6MB. Free memory was 113.1MB in the beginning and 111.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.35ms. Allocated memory is still 142.6MB. Free memory was 111.9MB in the beginning and 98.2MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 449.58ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 74.3MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 142.6MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:43:04,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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_81f2629e-7e64-4495-a7f8-406cf450c19c/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 c4cb47198f264b062dc36e4b377ad0aaadbdda18ccf1266f47e11aa66017b256 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:43:07,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:43:07,276 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-12-05 21:43:07,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:43:07,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:43:07,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:43:07,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:43:07,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:43:07,310 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:43:07,311 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:43:07,311 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 21:43:07,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:07,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:43:07,312 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 21:43:07,313 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:07,313 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 21:43:07,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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 -> c4cb47198f264b062dc36e4b377ad0aaadbdda18ccf1266f47e11aa66017b256 [2024-12-05 21:43:07,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:43:07,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:43:07,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:43:07,613 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:43:07,614 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:43:07,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i [2024-12-05 21:43:10,470 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/505d524f0/a8d9f4569ad942b2a8fa1a7ac86694d5/FLAG2b6e77eb3 [2024-12-05 21:43:10,818 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:43:10,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_16_bad.i [2024-12-05 21:43:10,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/505d524f0/a8d9f4569ad942b2a8fa1a7ac86694d5/FLAG2b6e77eb3 [2024-12-05 21:43:10,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/data/505d524f0/a8d9f4569ad942b2a8fa1a7ac86694d5 [2024-12-05 21:43:10,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:43:10,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:43:10,868 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:10,868 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:43:10,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:43:10,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:10" (1/1) ... [2024-12-05 21:43:10,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50576f11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:10, skipping insertion in model container [2024-12-05 21:43:10,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:43:10" (1/1) ... [2024-12-05 21:43:10,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:43:11,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:11,699 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:43:11,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:43:11,896 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:43:11,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11 WrapperNode [2024-12-05 21:43:11,897 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:43:11,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:11,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:43:11,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:43:11,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,945 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-12-05 21:43:11,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:43:11,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:43:11,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:43:11,946 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:43:11,954 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,958 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,966 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,977 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:43:11,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:43:11,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:43:11,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:43:11,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:43:11" (1/1) ... [2024-12-05 21:43:11,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:43:11,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:43:12,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:43:12,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:43:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-05 21:43:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-05 21:43:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 21:43:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:43:12,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:43:12,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:43:12,170 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:43:12,171 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:43:12,299 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-12-05 21:43:12,299 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:43:12,344 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:43:12,344 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-05 21:43:12,345 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:12 BoogieIcfgContainer [2024-12-05 21:43:12,345 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:43:12,345 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:43:12,346 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:43:12,353 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:43:12,353 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:12" (1/1) ... [2024-12-05 21:43:12,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:43:12,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:12,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-12-05 21:43:12,402 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-12-05 21:43:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:43:12,405 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:12,406 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:12,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:12,408 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:12,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 21:43:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:12,530 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 21:43:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:43:12,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-05 21:43:12,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:43:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:43:12,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 21:43:12,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:43:12,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-05 21:43:12,614 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-05 21:43:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 21:43:12,614 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:43:12,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 21:43:12,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 21:43:12,616 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 21:43:12,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 21:43:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:12,737 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:12,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:12,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:12,828 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:43:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:43:12,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 21:43:12,863 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-05 21:43:12,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:43:12 ImpRootNode [2024-12-05 21:43:12,892 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:43:12,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:43:12,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:43:12,893 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:43:12,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:43:12" (3/4) ... [2024-12-05 21:43:12,896 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-05 21:43:12,897 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:43:12,898 INFO L158 Benchmark]: Toolchain (without parser) took 2032.78ms. Allocated memory is still 92.3MB. Free memory was 66.3MB in the beginning and 47.4MB in the end (delta: 18.9MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2024-12-05 21:43:12,899 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:12,899 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1029.62ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.1MB in the end (delta: 5.0MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-12-05 21:43:12,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.66ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 58.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:12,900 INFO L158 Benchmark]: Boogie Preprocessor took 31.49ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 56.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:12,901 INFO L158 Benchmark]: RCFGBuilder took 366.89ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 40.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:43:12,901 INFO L158 Benchmark]: CodeCheck took 546.49ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 48.0MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:12,901 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 47.4MB in the end (delta: 529.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:43:12,904 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, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 1 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: 1571]: 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); [L1580] 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) [L1580] 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] [L1581] CALL CWE191_Integer_Underflow__int_fgets_multiply_16_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] [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) [L1569] COND TRUE data < 0 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] [L1571] data * 2 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 0.36ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1029.62ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.1MB in the end (delta: 5.0MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.66ms. Allocated memory is still 92.3MB. Free memory was 61.1MB in the beginning and 58.2MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.49ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 56.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 366.89ms. Allocated memory is still 92.3MB. Free memory was 56.4MB in the beginning and 40.7MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 546.49ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 48.0MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 47.4MB in the end (delta: 529.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-05 21:43:12,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81f2629e-7e64-4495-a7f8-406cf450c19c/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