./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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 a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 01:57:40,069 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 01:57:40,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 01:57:40,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 01:57:40,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 01:57:40,222 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 01:57:40,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 01:57:40,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 01:57:40,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 01:57:40,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 01:57:40,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 01:57:40,226 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 01:57:40,227 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 01:57:40,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 01:57:40,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:57:40,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 01:57:40,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 01:57:40,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 01:57:40,228 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 01:57:40,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 01:57:40,228 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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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 -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-11-25 01:57:40,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 01:57:40,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 01:57:40,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 01:57:40,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 01:57:40,605 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 01:57:40,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-25 01:57:44,036 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/c28f0c3aa/e071b7a6dec64e4b95768a416883aa5f/FLAG4c530d6d9 [2024-11-25 01:57:44,510 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 01:57:44,510 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-25 01:57:44,541 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/c28f0c3aa/e071b7a6dec64e4b95768a416883aa5f/FLAG4c530d6d9 [2024-11-25 01:57:44,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/c28f0c3aa/e071b7a6dec64e4b95768a416883aa5f [2024-11-25 01:57:44,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 01:57:44,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 01:57:44,569 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 01:57:44,569 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 01:57:44,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 01:57:44,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:57:44" (1/1) ... [2024-11-25 01:57:44,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d333e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:44, skipping insertion in model container [2024-11-25 01:57:44,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:57:44" (1/1) ... [2024-11-25 01:57:44,641 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 01:57:45,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:57:45,824 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 01:57:45,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:57:46,077 INFO L204 MainTranslator]: Completed translation [2024-11-25 01:57:46,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46 WrapperNode [2024-11-25 01:57:46,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 01:57:46,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 01:57:46,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 01:57:46,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 01:57:46,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,146 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-25 01:57:46,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 01:57:46,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 01:57:46,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 01:57:46,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 01:57:46,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,174 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,175 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,179 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 01:57:46,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 01:57:46,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 01:57:46,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 01:57:46,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:57:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 01:57:46,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 01:57:46,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 01:57:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 01:57:46,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 01:57:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 01:57:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 01:57:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 01:57:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 01:57:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 01:57:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 01:57:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 01:57:46,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 01:57:46,438 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 01:57:46,441 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 01:57:46,611 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 01:57:46,611 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 01:57:46,667 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 01:57:46,667 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 01:57:46,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:46 BoogieIcfgContainer [2024-11-25 01:57:46,668 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 01:57:46,668 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 01:57:46,668 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 01:57:46,679 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 01:57:46,679 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:46" (1/1) ... [2024-11-25 01:57:46,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 01:57:46,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:57:46,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 01:57:46,740 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 01:57:46,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 01:57:46,744 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 01:57:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 01:57:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:46,941 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 01:57:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:47,095 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 01:57:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:47,135 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 01:57:47,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 01:57:47 ImpRootNode [2024-11-25 01:57:47,161 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 01:57:47,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 01:57:47,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 01:57:47,162 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 01:57:47,163 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:46" (3/4) ... [2024-11-25 01:57:47,165 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 01:57:47,166 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 01:57:47,167 INFO L158 Benchmark]: Toolchain (without parser) took 2599.70ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 39.7MB in the end (delta: 51.5MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2024-11-25 01:57:47,167 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:47,168 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.11ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 81.0MB in the end (delta: 9.8MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. [2024-11-25 01:57:47,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.74ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 01:57:47,168 INFO L158 Benchmark]: Boogie Preprocessor took 34.24ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 77.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:47,169 INFO L158 Benchmark]: RCFGBuilder took 485.00ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 62.6MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 01:57:47,169 INFO L158 Benchmark]: CodeCheck took 492.66ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 39.7MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 01:57:47,169 INFO L158 Benchmark]: Witness Printer took 4.38ms. Allocated memory is still 117.4MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:47,172 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: 0.4s, 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={12281:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.11ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 81.0MB in the end (delta: 9.8MB). Peak memory consumption was 67.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.74ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.2MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.24ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 77.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 485.00ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 62.6MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 492.66ms. Allocated memory is still 117.4MB. Free memory was 62.0MB in the beginning and 39.7MB in the end (delta: 22.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.38ms. Allocated memory is still 117.4MB. Free memory is still 39.7MB. 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 01:57:47,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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 a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 01:57:50,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 01:57:50,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 01:57:50,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 01:57:50,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 01:57:50,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 01:57:50,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 01:57:50,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 01:57:50,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 01:57:50,162 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 01:57:50,163 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 01:57:50,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 01:57:50,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:57:50,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 01:57:50,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 01:57:50,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 01:57:50,164 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 01:57:50,164 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 01:57:50,164 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 01:57:50,164 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_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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 -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-11-25 01:57:50,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 01:57:50,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 01:57:50,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 01:57:50,546 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 01:57:50,546 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 01:57:50,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-25 01:57:53,857 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/4bcae76f0/f4c13591f9cb4ff581c1f17201656477/FLAGcda6e7407 [2024-11-25 01:57:54,313 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 01:57:54,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-25 01:57:54,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/4bcae76f0/f4c13591f9cb4ff581c1f17201656477/FLAGcda6e7407 [2024-11-25 01:57:54,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/data/4bcae76f0/f4c13591f9cb4ff581c1f17201656477 [2024-11-25 01:57:54,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 01:57:54,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 01:57:54,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 01:57:54,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 01:57:54,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 01:57:54,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:57:54" (1/1) ... [2024-11-25 01:57:54,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24889828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:54, skipping insertion in model container [2024-11-25 01:57:54,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 01:57:54" (1/1) ... [2024-11-25 01:57:54,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 01:57:55,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:57:55,738 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 01:57:55,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 01:57:56,180 INFO L204 MainTranslator]: Completed translation [2024-11-25 01:57:56,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56 WrapperNode [2024-11-25 01:57:56,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 01:57:56,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 01:57:56,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 01:57:56,184 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 01:57:56,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,276 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-25 01:57:56,277 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 01:57:56,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 01:57:56,279 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 01:57:56,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 01:57:56,290 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,315 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,320 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,330 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 01:57:56,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 01:57:56,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 01:57:56,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 01:57:56,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 01:57:56,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 01:57:56,394 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 01:57:56,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 01:57:56,432 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 01:57:56,433 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 01:57:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 01:57:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 01:57:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 01:57:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 01:57:56,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 01:57:56,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 01:57:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 01:57:56,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 01:57:56,618 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 01:57:56,620 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 01:57:56,855 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 01:57:56,855 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 01:57:56,945 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 01:57:56,945 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 01:57:56,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:56 BoogieIcfgContainer [2024-11-25 01:57:56,946 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 01:57:56,946 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 01:57:56,947 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 01:57:56,960 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 01:57:56,960 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:56" (1/1) ... [2024-11-25 01:57:56,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 01:57:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 01:57:57,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 01:57:57,038 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 01:57:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 01:57:57,044 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 01:57:57,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 01:57:57,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 01:57:57,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 01:57:57,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 01:57:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:57,399 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 01:57:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:57,701 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 01:57:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 01:57:57,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 01:57:57,782 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 01:57:57,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 01:57:57 ImpRootNode [2024-11-25 01:57:57,812 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 01:57:57,813 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 01:57:57,813 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 01:57:57,813 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 01:57:57,814 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 01:57:56" (3/4) ... [2024-11-25 01:57:57,817 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 01:57:57,818 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 01:57:57,819 INFO L158 Benchmark]: Toolchain (without parser) took 3434.87ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 70.7MB in the end (delta: 19.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-11-25 01:57:57,819 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:57,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1794.85ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 75.9MB in the end (delta: 14.1MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. [2024-11-25 01:57:57,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.15ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 73.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:57,821 INFO L158 Benchmark]: Boogie Preprocessor took 59.35ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 01:57:57,821 INFO L158 Benchmark]: RCFGBuilder took 603.71ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 54.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 01:57:57,822 INFO L158 Benchmark]: CodeCheck took 866.05ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 70.7MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:57,822 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 70.7MB in the end (delta: 9.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 01:57:57,824 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 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, 0.1s 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. 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); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 64.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1794.85ms. Allocated memory is still 117.4MB. Free memory was 90.0MB in the beginning and 75.9MB in the end (delta: 14.1MB). Peak memory consumption was 66.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.15ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 73.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.35ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.4MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 603.71ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 54.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 866.05ms. Allocated memory is still 117.4MB. Free memory was 54.6MB in the beginning and 70.7MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 70.7MB in the end (delta: 9.9kB). 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 01:57:57,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aec75a2f-bc63-4da4-a2e4-534be26f0b9e/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