./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_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_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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_ea77a648-1087-48c9-8681-eaea3c549323/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 79c74e04172c4526dc5dae67162a9a7f4efe72416b36dc0601a6fd955a76e90b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:50:11,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:50:11,721 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:50:11,726 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:50:11,726 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:50:11,759 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:50:11,759 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:50:11,760 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:50:11,760 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:50:11,760 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:50:11,760 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:50:11,760 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:50:11,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:50:11,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:50:11,764 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:50:11,764 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:50:11,764 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:50:11,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:50:11,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:50:11,764 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:50:11,764 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:50:11,764 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:50:11,765 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:50:11,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:50:11,765 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_ea77a648-1087-48c9-8681-eaea3c549323/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 -> 79c74e04172c4526dc5dae67162a9a7f4efe72416b36dc0601a6fd955a76e90b [2024-11-25 04:50:12,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:50:12,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:50:12,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:50:12,126 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:50:12,127 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:50:12,129 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i [2024-11-25 04:50:15,199 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/b7b0c1d3c/095cda31706c47c29524cc3aa251a7dc/FLAG47ff730d9 [2024-11-25 04:50:15,765 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:50:15,766 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i [2024-11-25 04:50:15,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/b7b0c1d3c/095cda31706c47c29524cc3aa251a7dc/FLAG47ff730d9 [2024-11-25 04:50:15,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/b7b0c1d3c/095cda31706c47c29524cc3aa251a7dc [2024-11-25 04:50:15,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:50:15,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:50:15,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:50:15,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:50:15,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:50:15,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:15" (1/1) ... [2024-11-25 04:50:15,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bdc8ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:15, skipping insertion in model container [2024-11-25 04:50:15,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:15" (1/1) ... [2024-11-25 04:50:15,906 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:50:16,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:50:16,871 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:50:16,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:50:17,081 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:50:17,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17 WrapperNode [2024-11-25 04:50:17,082 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:50:17,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:50:17,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:50:17,083 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:50:17,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,120 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,146 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2024-11-25 04:50:17,146 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:50:17,147 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:50:17,147 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:50:17,147 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:50:17,155 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,164 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,166 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,168 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,169 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:50:17,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:50:17,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:50:17,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:50:17,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:50:17,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:50:17,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:50:17,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:50:17,251 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:50:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:50:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:50:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:50:17,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:50:17,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:50:17,413 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:50:17,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:50:17,531 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-25 04:50:17,532 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:50:17,592 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:50:17,593 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:50:17,594 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:17 BoogieIcfgContainer [2024-11-25 04:50:17,594 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:50:17,594 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:50:17,595 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:50:17,604 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:50:17,604 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:17" (1/1) ... [2024-11-25 04:50:17,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:50:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:50:17,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-25 04:50:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-25 04:50:17,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:50:17,673 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:50:17,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:50:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:50:17,899 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 04:50:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:50:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2024-11-25 04:50:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-25 04:50:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:50:17,940 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:50:17,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:50:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:17,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:50:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:18,106 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:50:18,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:18,138 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 04:50:18,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:50:18 ImpRootNode [2024-11-25 04:50:18,161 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:50:18,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:50:18,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:50:18,162 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:50:18,163 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:17" (3/4) ... [2024-11-25 04:50:18,165 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:50:18,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:50:18,167 INFO L158 Benchmark]: Toolchain (without parser) took 2332.87ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 67.8MB in the end (delta: 33.7MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2024-11-25 04:50:18,167 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:18,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1246.40ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 43.0MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-11-25 04:50:18,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.12ms. Allocated memory is still 142.6MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:18,168 INFO L158 Benchmark]: Boogie Preprocessor took 25.33ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.5MB in the end (delta: 956.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 04:50:18,168 INFO L158 Benchmark]: RCFGBuilder took 421.16ms. Allocated memory is still 142.6MB. Free memory was 39.1MB in the beginning and 92.7MB in the end (delta: -53.5MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-25 04:50:18,169 INFO L158 Benchmark]: CodeCheck took 566.89ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 67.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 04:50:18,169 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory is still 67.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:18,171 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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); [L1548] static const int STATIC_CONST_FIVE = 5; [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_sub_06_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, 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 0.83ms. Allocated memory is still 167.8MB. Free memory is still 103.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1246.40ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 43.0MB in the end (delta: 58.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.12ms. Allocated memory is still 142.6MB. Free memory was 43.0MB in the beginning and 40.4MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.33ms. Allocated memory is still 142.6MB. Free memory was 40.4MB in the beginning and 39.5MB in the end (delta: 956.4kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 421.16ms. Allocated memory is still 142.6MB. Free memory was 39.1MB in the beginning and 92.7MB in the end (delta: -53.5MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * CodeCheck took 566.89ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 67.8MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 142.6MB. Free memory is still 67.8MB. 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 04:50:18,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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 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_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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_ea77a648-1087-48c9-8681-eaea3c549323/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 79c74e04172c4526dc5dae67162a9a7f4efe72416b36dc0601a6fd955a76e90b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:50:20,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:50:21,029 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:50:21,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:50:21,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:50:21,070 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:50:21,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:50:21,070 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:50:21,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:50:21,070 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:50:21,070 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:50:21,072 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:50:21,073 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:50:21,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:50:21,074 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:50:21,074 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:50:21,074 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:50:21,074 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:50:21,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:50:21,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:50:21,075 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:50:21,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:50:21,075 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:50:21,075 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:50:21,076 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:50:21,076 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:50:21,076 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:50:21,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:50:21,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:50:21,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:50:21,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:50:21,078 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:50:21,078 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:50:21,078 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:50:21,078 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:50:21,078 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_ea77a648-1087-48c9-8681-eaea3c549323/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 -> 79c74e04172c4526dc5dae67162a9a7f4efe72416b36dc0601a6fd955a76e90b [2024-11-25 04:50:21,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:50:21,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:50:21,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:50:21,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:50:21,454 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:50:21,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i [2024-11-25 04:50:24,419 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/f889fd81d/bef95a88e3d84af4a8dca7a422d25d59/FLAG718d42387 [2024-11-25 04:50:24,805 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:50:24,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_06_bad.i [2024-11-25 04:50:24,836 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/f889fd81d/bef95a88e3d84af4a8dca7a422d25d59/FLAG718d42387 [2024-11-25 04:50:24,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/data/f889fd81d/bef95a88e3d84af4a8dca7a422d25d59 [2024-11-25 04:50:24,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:50:24,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:50:24,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:50:24,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:50:24,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:50:24,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:24" (1/1) ... [2024-11-25 04:50:24,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab7d479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:24, skipping insertion in model container [2024-11-25 04:50:24,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:50:24" (1/1) ... [2024-11-25 04:50:24,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:50:26,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:50:26,033 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:50:26,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:50:26,296 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:50:26,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26 WrapperNode [2024-11-25 04:50:26,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:50:26,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:50:26,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:50:26,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:50:26,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,339 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,374 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2024-11-25 04:50:26,375 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:50:26,376 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:50:26,376 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:50:26,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:50:26,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,391 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,403 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,420 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:50:26,424 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:50:26,424 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:50:26,424 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:50:26,425 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:50:26,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:50:26,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:50:26,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:50:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:50:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:50:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:50:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:50:26,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:50:26,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:50:26,675 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:50:26,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:50:26,841 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-25 04:50:26,841 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:50:26,902 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:50:26,902 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:50:26,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:26 BoogieIcfgContainer [2024-11-25 04:50:26,903 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:50:26,904 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:50:26,904 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:50:26,914 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:50:26,914 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:26" (1/1) ... [2024-11-25 04:50:26,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:50:26,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:50:26,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2024-11-25 04:50:26,964 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-25 04:50:26,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:50:26,969 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:50:26,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:50:26,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:50:26,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:50:26,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:50:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:50:27,110 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 04:50:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 04:50:27,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 04:50:27,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:50:27,244 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 04:50:27,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:50:27,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:50:27,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2024-11-25 04:50:27,328 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2024-11-25 04:50:27,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 04:50:27,329 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:50:27,329 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:50:27,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:50:27,332 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:50:27,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 04:50:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:27,498 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:50:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:27,596 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:50:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:50:27,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 04:50:27,628 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-25 04:50:27,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:50:27 ImpRootNode [2024-11-25 04:50:27,653 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:50:27,654 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:50:27,654 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:50:27,654 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:50:27,655 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:50:26" (3/4) ... [2024-11-25 04:50:27,657 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:50:27,658 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:50:27,659 INFO L158 Benchmark]: Toolchain (without parser) took 2792.78ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 65.5MB in the end (delta: 23.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-25 04:50:27,659 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:27,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1428.96ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 75.7MB in the end (delta: 13.3MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-25 04:50:27,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.61ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 73.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:27,661 INFO L158 Benchmark]: Boogie Preprocessor took 47.56ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:27,661 INFO L158 Benchmark]: RCFGBuilder took 478.57ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 55.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:50:27,661 INFO L158 Benchmark]: CodeCheck took 749.53ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 66.1MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:27,662 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 65.5MB in the end (delta: 651.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:50:27,664 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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); [L1548] static const int STATIC_CONST_FIVE = 5; [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_sub_06_bad() [L1551] int data; [L1552] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1567] COND TRUE STATIC_CONST_FIVE==5 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1428.96ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 75.7MB in the end (delta: 13.3MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.61ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 73.3MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.56ms. Allocated memory is still 117.4MB. Free memory was 73.3MB in the beginning and 71.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 478.57ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 55.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 749.53ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 66.1MB in the end (delta: -11.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 117.4MB. Free memory was 66.1MB in the beginning and 65.5MB in the end (delta: 651.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:50:27,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea77a648-1087-48c9-8681-eaea3c549323/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