./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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 e0dfbbc5e3909169e58dc95e1619f4181c5e54e95f59c0b8970a1b517b1cf071 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:52:48,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:52:48,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:52:48,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:52:48,657 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:52:48,682 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:52:48,683 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:52:48,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:52:48,684 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:52:48,684 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:52:48,685 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:52:48,685 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:52:48,685 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:52:48,685 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:52:48,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:52:48,686 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:52:48,687 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:52:48,687 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:52:48,687 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:52:48,687 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:52:48,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:52:48,692 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:52:48,692 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:52:48,692 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:52:48,692 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:52:48,693 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:52:48,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:52:48,693 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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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 -> e0dfbbc5e3909169e58dc95e1619f4181c5e54e95f59c0b8970a1b517b1cf071 [2024-11-25 02:52:49,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:52:49,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:52:49,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:52:49,096 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:52:49,097 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:52:49,098 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i [2024-11-25 02:52:52,339 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/3ae73a96c/27d9ada9b1864209bfb2caf253bb0d90/FLAG7ef0456d2 [2024-11-25 02:52:52,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:52:52,742 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i [2024-11-25 02:52:52,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/3ae73a96c/27d9ada9b1864209bfb2caf253bb0d90/FLAG7ef0456d2 [2024-11-25 02:52:52,790 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/3ae73a96c/27d9ada9b1864209bfb2caf253bb0d90 [2024-11-25 02:52:52,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:52:52,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:52:52,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:52:52,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:52:52,802 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:52:52,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:52:52" (1/1) ... [2024-11-25 02:52:52,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c9f980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:52, skipping insertion in model container [2024-11-25 02:52:52,807 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:52:52" (1/1) ... [2024-11-25 02:52:52,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:52:53,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:52:53,897 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:52:54,005 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:52:54,144 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:52:54,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54 WrapperNode [2024-11-25 02:52:54,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:52:54,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:52:54,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:52:54,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:52:54,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,206 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-25 02:52:54,207 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:52:54,208 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:52:54,208 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:52:54,208 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:52:54,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,233 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:52:54,252 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:52:54,252 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:52:54,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:52:54,254 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:52:54,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:52:54,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:52:54,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:52:54,348 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:52:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:52:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:52:54,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:52:54,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:52:54,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:52:54,543 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:52:54,546 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:52:54,766 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 02:52:54,766 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:52:54,845 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:52:54,846 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:52:54,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:54 BoogieIcfgContainer [2024-11-25 02:52:54,846 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:52:54,847 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:52:54,847 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:52:54,863 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:52:54,863 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:54" (1/1) ... [2024-11-25 02:52:54,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:52:54,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:54,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:52:54,950 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:52:54,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:52:54,957 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:54,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:52:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:52:55,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:52:55,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-25 02:52:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-25 02:52:55,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 02:52:55,410 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:52:55,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:52:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:52:55,500 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:52:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:52:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:52:55,636 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:52:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:52:55,689 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 02:52:55,736 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:52:55 ImpRootNode [2024-11-25 02:52:55,737 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:52:55,737 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:52:55,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:52:55,738 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:52:55,738 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:52:54" (3/4) ... [2024-11-25 02:52:55,742 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:52:55,743 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:52:55,744 INFO L158 Benchmark]: Toolchain (without parser) took 2949.90ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 33.4MB in the end (delta: 55.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-25 02:52:55,745 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:52:55,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1349.12ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 80.7MB in the end (delta: 8.2MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-25 02:52:55,746 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.71ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:52:55,746 INFO L158 Benchmark]: Boogie Preprocessor took 43.27ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:52:55,747 INFO L158 Benchmark]: RCFGBuilder took 594.55ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.4MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:52:55,747 INFO L158 Benchmark]: CodeCheck took 889.61ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 33.4MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 02:52:55,748 INFO L158 Benchmark]: Witness Printer took 5.87ms. Allocated memory is still 117.4MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:52:55,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 9 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_postinc_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1349.12ms. Allocated memory is still 117.4MB. Free memory was 88.9MB in the beginning and 80.7MB in the end (delta: 8.2MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.71ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 78.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.27ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 594.55ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 62.4MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 889.61ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 33.4MB in the end (delta: 29.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.87ms. Allocated memory is still 117.4MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:52:55,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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 e0dfbbc5e3909169e58dc95e1619f4181c5e54e95f59c0b8970a1b517b1cf071 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:52:58,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:52:58,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:52:59,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:52:59,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:52:59,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:52:59,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:52:59,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:52:59,038 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:52:59,039 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:52:59,039 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:52:59,039 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:52:59,040 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:52:59,040 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:52:59,041 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:52:59,041 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:52:59,041 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:52:59,041 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:52:59,041 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:52:59,042 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:52:59,042 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:52:59,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:52:59,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:52:59,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:52:59,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:52:59,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:52:59,043 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:52:59,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:52:59,043 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:52:59,043 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_6a9081d1-efea-49a0-bc9d-337ad3794fe7/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 -> e0dfbbc5e3909169e58dc95e1619f4181c5e54e95f59c0b8970a1b517b1cf071 [2024-11-25 02:52:59,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:52:59,446 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:52:59,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:52:59,452 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:52:59,452 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:52:59,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i [2024-11-25 02:53:02,549 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/f9b58311c/26ec2fbd7bb84e7e8abb18d0a0adeda5/FLAG0f81f446d [2024-11-25 02:53:03,022 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:53:03,022 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_42_bad.i [2024-11-25 02:53:03,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/f9b58311c/26ec2fbd7bb84e7e8abb18d0a0adeda5/FLAG0f81f446d [2024-11-25 02:53:03,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/data/f9b58311c/26ec2fbd7bb84e7e8abb18d0a0adeda5 [2024-11-25 02:53:03,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:53:03,104 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:53:03,106 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:53:03,106 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:53:03,114 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:53:03,115 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:53:03" (1/1) ... [2024-11-25 02:53:03,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c78c368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:03, skipping insertion in model container [2024-11-25 02:53:03,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:53:03" (1/1) ... [2024-11-25 02:53:03,205 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:53:04,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:53:04,400 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:53:04,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:53:04,685 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:53:04,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04 WrapperNode [2024-11-25 02:53:04,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:53:04,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:53:04,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:53:04,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:53:04,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,735 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 02:53:04,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:53:04,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:53:04,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:53:04,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:53:04,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,758 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,764 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,768 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,771 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:53:04,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:53:04,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:53:04,772 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:53:04,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:53:04" (1/1) ... [2024-11-25 02:53:04,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:53:04,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:53:04,808 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:53:04,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:53:04,835 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:53:04,837 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:53:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:53:04,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:53:04,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:53:04,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:53:05,001 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:53:05,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:53:05,167 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 02:53:05,167 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:53:05,208 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:53:05,209 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:53:05,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:53:05 BoogieIcfgContainer [2024-11-25 02:53:05,209 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:53:05,210 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:53:05,210 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:53:05,221 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:53:05,221 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:53:05" (1/1) ... [2024-11-25 02:53:05,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:53:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:53:05,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 02:53:05,299 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 02:53:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:53:05,303 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:53:05,306 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:53:05,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:53:05,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:53:05,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:53:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:53:05,528 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:53:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:53:05,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 02:53:05,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:53:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:53:05,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:53:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:53:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-25 02:53:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-25 02:53:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 02:53:05,678 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:53:05,679 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:53:05,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:53:05,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:53:05,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 02:53:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:05,882 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:53:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:06,078 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:53:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:53:06,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 02:53:06,149 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 02:53:06,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:53:06 ImpRootNode [2024-11-25 02:53:06,197 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:53:06,198 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:53:06,198 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:53:06,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:53:06,204 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:53:05" (3/4) ... [2024-11-25 02:53:06,207 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:53:06,208 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:53:06,209 INFO L158 Benchmark]: Toolchain (without parser) took 3106.66ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 48.7MB in the end (delta: 8.0MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-25 02:53:06,210 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:06,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1579.75ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 51.2MB in the end (delta: 5.5MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-25 02:53:06,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.55ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 48.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:06,211 INFO L158 Benchmark]: Boogie Preprocessor took 34.79ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 46.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:06,212 INFO L158 Benchmark]: RCFGBuilder took 437.87ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 30.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:53:06,216 INFO L158 Benchmark]: CodeCheck took 986.97ms. Allocated memory is still 83.9MB. Free memory was 30.7MB in the beginning and 49.1MB in the end (delta: -18.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2024-11-25 02:53:06,217 INFO L158 Benchmark]: Witness Printer took 10.52ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 48.7MB in the end (delta: 444.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:53:06,219 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554, overapproximation of fgets at line 1552. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE190_Integer_Overflow__int_fgets_postinc_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] 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] [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1561] return data; [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 83.9MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1579.75ms. Allocated memory is still 83.9MB. Free memory was 56.7MB in the beginning and 51.2MB in the end (delta: 5.5MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.55ms. Allocated memory is still 83.9MB. Free memory was 51.2MB in the beginning and 48.3MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.79ms. Allocated memory is still 83.9MB. Free memory was 48.3MB in the beginning and 46.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 437.87ms. Allocated memory is still 83.9MB. Free memory was 46.7MB in the beginning and 30.7MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 986.97ms. Allocated memory is still 83.9MB. Free memory was 30.7MB in the beginning and 49.1MB in the end (delta: -18.5MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 10.52ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 48.7MB in the end (delta: 444.6kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 02:53:06,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a9081d1-efea-49a0-bc9d-337ad3794fe7/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample