./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_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_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3 --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 f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:03:34,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:03:34,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-24 18:03:34,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:03:34,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:03:34,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:03:34,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:03:34,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:03:34,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:03:34,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:03:34,908 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:03:34,909 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:03:34,910 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:03:34,910 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:03:34,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:03:34,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:03:34,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:03:34,911 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:03:34,911 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:03:34,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:03:34,911 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_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3 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 -> f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 [2024-11-24 18:03:35,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:03:35,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:03:35,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:03:35,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:03:35,330 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:03:35,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2024-11-24 18:03:39,155 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/ba9833783/b6b48b08c7ff44948e500ff7e63fea3e/FLAGcb4546b96 [2024-11-24 18:03:39,669 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:03:39,669 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2024-11-24 18:03:39,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/ba9833783/b6b48b08c7ff44948e500ff7e63fea3e/FLAGcb4546b96 [2024-11-24 18:03:39,721 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/ba9833783/b6b48b08c7ff44948e500ff7e63fea3e [2024-11-24 18:03:39,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:03:39,726 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:03:39,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:03:39,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:03:39,734 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:03:39,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:39" (1/1) ... [2024-11-24 18:03:39,737 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97c373c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:39, skipping insertion in model container [2024-11-24 18:03:39,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:39" (1/1) ... [2024-11-24 18:03:39,824 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:03:40,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:03:40,986 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:03:41,151 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:03:41,332 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:03:41,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41 WrapperNode [2024-11-24 18:03:41,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:03:41,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:03:41,335 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:03:41,335 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:03:41,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,395 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 64 [2024-11-24 18:03:41,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:03:41,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:03:41,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:03:41,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:03:41,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,411 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,412 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,419 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:03:41,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:03:41,435 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:03:41,435 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:03:41,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:41" (1/1) ... [2024-11-24 18:03:41,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:03:41,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:03:41,504 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:03:41,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:03:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 18:03:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 18:03:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:03:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:03:41,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:03:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:03:41,800 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:03:41,803 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:03:41,983 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-24 18:03:41,984 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:03:42,058 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:03:42,062 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 18:03:42,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:42 BoogieIcfgContainer [2024-11-24 18:03:42,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:03:42,064 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:03:42,064 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:03:42,080 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:03:42,080 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:42" (1/1) ... [2024-11-24 18:03:42,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:03:42,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:03:42,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-24 18:03:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-24 18:03:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:03:42,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:03:42,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:03:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:03:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:03:42,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:03:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-24 18:03:42,877 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-24 18:03:42,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 18:03:42,877 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:03:42,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:03:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:42,995 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:03:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:43,157 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:03:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:43,206 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-24 18:03:43,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:03:43 ImpRootNode [2024-11-24 18:03:43,246 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:03:43,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:03:43,247 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:03:43,247 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:03:43,248 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:42" (3/4) ... [2024-11-24 18:03:43,250 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 18:03:43,251 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:03:43,252 INFO L158 Benchmark]: Toolchain (without parser) took 3525.63ms. Allocated memory is still 117.4MB. Free memory was 88.6MB in the beginning and 76.2MB in the end (delta: 12.4MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-11-24 18:03:43,252 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 83.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:43,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1605.81ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 80.0MB in the end (delta: 8.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-24 18:03:43,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.42ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:03:43,254 INFO L158 Benchmark]: Boogie Preprocessor took 33.53ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:43,254 INFO L158 Benchmark]: RCFGBuilder took 628.28ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 62.3MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:03:43,255 INFO L158 Benchmark]: CodeCheck took 1181.86ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 76.2MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:43,255 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 76.2MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:43,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL funcPtr(data) [L1551] data + 1 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 0.55ms. Allocated memory is still 83.9MB. Free memory is still 41.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1605.81ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 80.0MB in the end (delta: 8.2MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.42ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.53ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 76.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 628.28ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 62.3MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1181.86ms. Allocated memory is still 117.4MB. Free memory was 62.3MB in the beginning and 76.2MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 76.2MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 18:03:43,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/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_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3 --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 f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:03:46,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:03:46,881 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-24 18:03:46,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:03:46,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:03:46,921 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:03:46,921 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:03:46,921 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:03:46,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:03:46,922 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:03:46,923 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:03:46,923 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:03:46,924 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:03:46,924 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:03:46,924 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:03:46,924 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-24 18:03:46,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:03:46,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:03:46,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:03:46,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:03:46,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:03:46,926 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-24 18:03:46,926 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:03:46,926 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-24 18:03:46,926 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_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3 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 -> f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 [2024-11-24 18:03:47,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:03:47,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:03:47,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:03:47,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:03:47,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:03:47,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2024-11-24 18:03:51,231 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/faea01255/9475ac6ca4bf455680036e52c3278154/FLAGc2ae66df2 [2024-11-24 18:03:51,833 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:03:51,834 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2024-11-24 18:03:51,879 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/faea01255/9475ac6ca4bf455680036e52c3278154/FLAGc2ae66df2 [2024-11-24 18:03:51,914 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/data/faea01255/9475ac6ca4bf455680036e52c3278154 [2024-11-24 18:03:51,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:03:51,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:03:51,926 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:03:51,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:03:51,934 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:03:51,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:51" (1/1) ... [2024-11-24 18:03:51,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e378afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:51, skipping insertion in model container [2024-11-24 18:03:51,939 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:03:51" (1/1) ... [2024-11-24 18:03:52,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:03:53,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:03:53,171 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:03:53,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:03:53,553 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:03:53,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53 WrapperNode [2024-11-24 18:03:53,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:03:53,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:03:53,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:03:53,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:03:53,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,629 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2024-11-24 18:03:53,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:03:53,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:03:53,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:03:53,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:03:53,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,684 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:03:53,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:03:53,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:03:53,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:03:53,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:03:53" (1/1) ... [2024-11-24 18:03:53,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:03:53,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:03:53,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:03:53,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:03:53,812 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-24 18:03:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-24 18:03:53,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-24 18:03:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:03:53,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:03:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:03:54,091 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:03:54,094 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:03:54,328 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-24 18:03:54,328 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:03:54,428 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:03:54,429 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-24 18:03:54,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:54 BoogieIcfgContainer [2024-11-24 18:03:54,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:03:54,432 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:03:54,432 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:03:54,449 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:03:54,449 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:54" (1/1) ... [2024-11-24 18:03:54,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:03:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:03:54,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-24 18:03:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-24 18:03:54,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-24 18:03:54,550 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:03:54,551 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 18:03:54,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-24 18:03:54,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 18:03:54,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-24 18:03:54,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:03:54,860 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-24 18:03:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:03:54,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 18:03:54,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 18:03:54,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:03:55,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-24 18:03:55,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:03:55,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-24 18:03:55,034 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-24 18:03:55,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-24 18:03:55,035 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:03:55,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 18:03:55,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-24 18:03:55,042 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 18:03:55,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-24 18:03:55,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:55,347 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:03:55,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:55,651 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 18:03:55,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 18:03:55,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-24 18:03:55,768 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-24 18:03:55,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:03:55 ImpRootNode [2024-11-24 18:03:55,805 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:03:55,806 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:03:55,806 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:03:55,806 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:03:55,809 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:03:54" (3/4) ... [2024-11-24 18:03:55,812 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 18:03:55,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:03:55,817 INFO L158 Benchmark]: Toolchain (without parser) took 3893.21ms. Allocated memory was 83.9MB in the beginning and 201.3MB in the end (delta: 117.4MB). Free memory was 56.7MB in the beginning and 116.0MB in the end (delta: -59.3MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2024-11-24 18:03:55,817 INFO L158 Benchmark]: CDTParser took 1.74ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:55,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1628.68ms. Allocated memory was 83.9MB in the beginning and 201.3MB in the end (delta: 117.4MB). Free memory was 56.5MB in the beginning and 171.0MB in the end (delta: -114.6MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2024-11-24 18:03:55,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.93ms. Allocated memory is still 201.3MB. Free memory was 171.0MB in the beginning and 168.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:55,820 INFO L158 Benchmark]: Boogie Preprocessor took 66.02ms. Allocated memory is still 201.3MB. Free memory was 168.5MB in the beginning and 166.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:55,820 INFO L158 Benchmark]: RCFGBuilder took 726.57ms. Allocated memory is still 201.3MB. Free memory was 166.6MB in the beginning and 149.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:03:55,820 INFO L158 Benchmark]: CodeCheck took 1373.53ms. Allocated memory is still 201.3MB. Free memory was 149.0MB in the beginning and 116.0MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 18:03:55,821 INFO L158 Benchmark]: Witness Printer took 7.77ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:03:55,826 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 2 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 56 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of fgets at line 1562. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL funcPtr(data) [L1551] data + 1 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 1.74ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1628.68ms. Allocated memory was 83.9MB in the beginning and 201.3MB in the end (delta: 117.4MB). Free memory was 56.5MB in the beginning and 171.0MB in the end (delta: -114.6MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.93ms. Allocated memory is still 201.3MB. Free memory was 171.0MB in the beginning and 168.5MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.02ms. Allocated memory is still 201.3MB. Free memory was 168.5MB in the beginning and 166.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 726.57ms. Allocated memory is still 201.3MB. Free memory was 166.6MB in the beginning and 149.0MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1373.53ms. Allocated memory is still 201.3MB. Free memory was 149.0MB in the beginning and 116.0MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 7.77ms. Allocated memory is still 201.3MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 18:03:55,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0eb98d43-e0ca-49a2-92dc-95647b9255e7/bin/ukojak-verify-ENZ3QT5qd3/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