./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_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_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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_28b95431-14ab-4c45-b522-057660bf9d07/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:03:45,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:03:45,668 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 03:03:45,677 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:03:45,678 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:03:45,715 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:03:45,717 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:03:45,718 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:03:45,718 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:03:45,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:03:45,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:03:45,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:03:45,721 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:03:45,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:03:45,721 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:03:45,722 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:03:45,723 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:03:45,723 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:03:45,723 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:03:45,723 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:03:45,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:03:45,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:45,723 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:03:45,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:03:45,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:03:45,724 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:03:45,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:03:45,724 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_28b95431-14ab-4c45-b522-057660bf9d07/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 -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-25 03:03:46,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:03:46,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:03:46,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:03:46,081 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:03:46,081 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:03:46,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-25 03:03:49,067 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/9906593aa/d2bfbe992fb04235bf78b4262da01f1b/FLAGfbb8d7154 [2024-11-25 03:03:49,443 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:03:49,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-25 03:03:49,477 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/9906593aa/d2bfbe992fb04235bf78b4262da01f1b/FLAGfbb8d7154 [2024-11-25 03:03:49,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/9906593aa/d2bfbe992fb04235bf78b4262da01f1b [2024-11-25 03:03:49,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:03:49,502 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:03:49,504 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:49,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:03:49,510 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:03:49,511 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:49" (1/1) ... [2024-11-25 03:03:49,512 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2398f8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:49, skipping insertion in model container [2024-11-25 03:03:49,513 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:49" (1/1) ... [2024-11-25 03:03:49,580 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:03:50,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:50,475 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:03:50,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:50,733 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:03:50,733 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50 WrapperNode [2024-11-25 03:03:50,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:50,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:50,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:03:50,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:03:50,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,781 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-25 03:03:50,782 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:50,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:03:50,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:03:50,783 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:03:50,790 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,803 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,804 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,806 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,807 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,811 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:03:50,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:03:50,812 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:03:50,812 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:03:50,813 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:50" (1/1) ... [2024-11-25 03:03:50,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:50,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:03:50,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:03:50,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:03:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 03:03:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 03:03:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:03:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:03:50,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:03:50,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:03:51,030 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:03:51,032 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:03:51,134 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 03:03:51,135 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:03:51,187 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:03:51,188 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:03:51,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:03:51 BoogieIcfgContainer [2024-11-25 03:03:51,188 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:03:51,189 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:03:51,189 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:03:51,199 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:03:51,200 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:03:51" (1/1) ... [2024-11-25 03:03:51,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:03:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:03:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 03:03:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 03:03:51,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:03:51,273 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:03:51,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:03:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:03:51,396 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:03:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:03:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:03:51,494 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:03:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:03:51,527 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 03:03:51,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:03:51 ImpRootNode [2024-11-25 03:03:51,565 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:03:51,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:03:51,567 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:03:51,567 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:03:51,569 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:03:51" (3/4) ... [2024-11-25 03:03:51,573 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 03:03:51,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:03:51,574 INFO L158 Benchmark]: Toolchain (without parser) took 2072.99ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 43.8MB in the end (delta: 44.8MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-25 03:03:51,576 INFO L158 Benchmark]: CDTParser took 0.83ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:03:51,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1229.74ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 81.7MB in the end (delta: 7.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. [2024-11-25 03:03:51,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.47ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:03:51,577 INFO L158 Benchmark]: Boogie Preprocessor took 28.78ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 78.3MB in the end (delta: 578.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:03:51,577 INFO L158 Benchmark]: RCFGBuilder took 376.38ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:03:51,579 INFO L158 Benchmark]: CodeCheck took 376.91ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 43.8MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:03:51,580 INFO L158 Benchmark]: Witness Printer took 7.41ms. Allocated memory is still 117.4MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:03:51,583 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: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] 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 0.83ms. Allocated memory is still 117.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1229.74ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 81.7MB in the end (delta: 7.0MB). Peak memory consumption was 66.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.47ms. Allocated memory is still 117.4MB. Free memory was 81.7MB in the beginning and 78.8MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.78ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 78.3MB in the end (delta: 578.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.38ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 63.9MB in the end (delta: 13.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 376.91ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 43.8MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 7.41ms. Allocated memory is still 117.4MB. Free memory is still 43.8MB. 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 03:03:51,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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_28b95431-14ab-4c45-b522-057660bf9d07/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 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:03:54,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:03:54,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 03:03:54,445 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:03:54,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:03:54,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:03:54,446 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:03:54,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:03:54,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:03:54,447 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 03:03:54,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:03:54,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:03:54,449 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:03:54,450 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:03:54,450 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:03:54,450 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:03:54,450 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:03:54,451 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:54,451 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 03:03:54,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:03:54,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:54,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:03:54,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:03:54,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:03:54,452 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 03:03:54,452 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:03:54,453 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 03:03:54,453 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_28b95431-14ab-4c45-b522-057660bf9d07/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 -> 2d28e1504773aa93ecb1bdb3ae742961472b0ee47b3aedcde912d309fad9f6bf [2024-11-25 03:03:54,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:03:54,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:03:54,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:03:54,762 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:03:54,763 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:03:54,764 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-25 03:03:57,867 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/d929aaf93/24c830aa559d4f5097d01f086be12663/FLAGeb12ed908 [2024-11-25 03:03:58,400 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:03:58,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_61_bad.i [2024-11-25 03:03:58,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/d929aaf93/24c830aa559d4f5097d01f086be12663/FLAGeb12ed908 [2024-11-25 03:03:58,465 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/data/d929aaf93/24c830aa559d4f5097d01f086be12663 [2024-11-25 03:03:58,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:03:58,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:03:58,472 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:58,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:03:58,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:03:58,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:58" (1/1) ... [2024-11-25 03:03:58,483 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305356f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:58, skipping insertion in model container [2024-11-25 03:03:58,483 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:03:58" (1/1) ... [2024-11-25 03:03:58,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:03:59,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:59,548 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:03:59,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:03:59,844 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:03:59,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59 WrapperNode [2024-11-25 03:03:59,845 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:03:59,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:59,846 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:03:59,846 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:03:59,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,898 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 03:03:59,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:03:59,899 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:03:59,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:03:59,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:03:59,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,918 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:03:59,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:03:59,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:03:59,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:03:59,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:03:59" (1/1) ... [2024-11-25 03:03:59,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:03:59,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:03:59,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:03:59,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:04:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 03:04:00,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 03:04:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 03:04:00,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:04:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:04:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:04:00,147 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:04:00,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:04:00,289 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 03:04:00,290 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:04:00,337 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:04:00,338 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:04:00,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:04:00 BoogieIcfgContainer [2024-11-25 03:04:00,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:04:00,339 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:04:00,339 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:04:00,351 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:04:00,351 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:04:00" (1/1) ... [2024-11-25 03:04:00,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:04:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:04:00,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 03:04:00,416 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 03:04:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:04:00,421 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:04:00,422 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:04:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:04:00,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:04:00,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 03:04:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:04:00,661 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:04:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:04:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:04:00,829 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:04:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:04:00,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 03:04:00,887 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 03:04:00,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:04:00 ImpRootNode [2024-11-25 03:04:00,921 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:04:00,922 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:04:00,922 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:04:00,923 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:04:00,924 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:04:00" (3/4) ... [2024-11-25 03:04:00,926 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 03:04:00,927 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:04:00,928 INFO L158 Benchmark]: Toolchain (without parser) took 2458.67ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 76.6MB in the end (delta: 12.7MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2024-11-25 03:04:00,928 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:04:00,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1372.74ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 68.3MB in the end (delta: 20.8MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-11-25 03:04:00,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.20ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 65.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:04:00,930 INFO L158 Benchmark]: Boogie Preprocessor took 32.04ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 63.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:04:00,930 INFO L158 Benchmark]: RCFGBuilder took 406.62ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 47.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:04:00,930 INFO L158 Benchmark]: CodeCheck took 582.09ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 77.3MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:04:00,933 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 76.6MB in the end (delta: 675.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:04:00,935 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 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, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574, overapproximation of fgets at line 1572. 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); [L1563] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1571] 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] [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1581] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_fgets_postdec_61b_badSource(data) [L1555] 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 0.43ms. Allocated memory is still 117.4MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1372.74ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 68.3MB in the end (delta: 20.8MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.20ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 65.7MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.04ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 63.8MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.62ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 47.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 582.09ms. Allocated memory is still 117.4MB. Free memory was 47.1MB in the beginning and 77.3MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 76.6MB in the end (delta: 675.5kB). 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 03:04:00,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28b95431-14ab-4c45-b522-057660bf9d07/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