./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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 edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:46:56,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:46:56,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 04:46:56,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 04:46:56,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 04:46:56,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:46:56,355 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:46:56,355 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:46:56,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:46:56,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:46:56,356 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:46:56,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:46:56,357 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:46:56,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:46:56,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:46:56,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:46:56,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:46:56,358 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 04:46:56,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 04:46:56,360 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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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 -> edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 [2024-11-25 04:46:56,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:46:56,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:46:56,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:46:56,710 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:46:56,710 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:46:56,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2024-11-25 04:46:59,686 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/1ff352e9d/2d332d7af0dc4ee4ad61dab49ce8f7c1/FLAG523dcd964 [2024-11-25 04:47:00,193 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:47:00,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2024-11-25 04:47:00,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/1ff352e9d/2d332d7af0dc4ee4ad61dab49ce8f7c1/FLAG523dcd964 [2024-11-25 04:47:00,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/1ff352e9d/2d332d7af0dc4ee4ad61dab49ce8f7c1 [2024-11-25 04:47:00,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:47:00,252 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:47:00,254 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:47:00,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:47:00,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:47:00,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:00" (1/1) ... [2024-11-25 04:47:00,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3aa895ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:00, skipping insertion in model container [2024-11-25 04:47:00,263 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:00" (1/1) ... [2024-11-25 04:47:00,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:47:01,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:47:01,198 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:47:01,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:47:01,493 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:47:01,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01 WrapperNode [2024-11-25 04:47:01,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:47:01,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:47:01,495 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:47:01,495 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:47:01,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,561 INFO L138 Inliner]: procedures = 498, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 74 [2024-11-25 04:47:01,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:47:01,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:47:01,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:47:01,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:47:01,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,587 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,589 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:47:01,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:47:01,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:47:01,605 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:47:01,606 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:01" (1/1) ... [2024-11-25 04:47:01,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:47:01,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:47:01,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:47:01,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:47:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:47:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:47:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:47:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 04:47:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:47:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:47:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:47:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:47:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 04:47:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 04:47:01,855 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:47:01,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:47:01,996 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-25 04:47:01,996 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:47:02,050 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:47:02,051 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:47:02,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:02 BoogieIcfgContainer [2024-11-25 04:47:02,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:47:02,052 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:47:02,052 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:47:02,060 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:47:02,061 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:02" (1/1) ... [2024-11-25 04:47:02,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:47:02,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:47:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:47:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:47:02,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:47:02,115 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:47:02,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 04:47:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:02,299 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:47:02,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:02,476 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:47:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:02,546 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:47:02,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:47:02 ImpRootNode [2024-11-25 04:47:02,644 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:47:02,645 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:47:02,645 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:47:02,645 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:47:02,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:02" (3/4) ... [2024-11-25 04:47:02,649 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:47:02,650 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:47:02,651 INFO L158 Benchmark]: Toolchain (without parser) took 2399.15ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 83.4MB in the end (delta: 4.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-25 04:47:02,652 INFO L158 Benchmark]: CDTParser took 1.26ms. Allocated memory is still 83.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:02,653 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1240.75ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 78.6MB in the end (delta: 9.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-25 04:47:02,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.63ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:02,656 INFO L158 Benchmark]: Boogie Preprocessor took 39.02ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:02,656 INFO L158 Benchmark]: RCFGBuilder took 450.09ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 60.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:47:02,657 INFO L158 Benchmark]: CodeCheck took 591.77ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 84.1MB in the end (delta: -24.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-11-25 04:47:02,657 INFO L158 Benchmark]: Witness Printer took 5.50ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 83.4MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:02,661 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, 0.1s 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={17068:0}, dataPtr2={17068:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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 1.26ms. Allocated memory is still 83.9MB. Free memory is still 39.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1240.75ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 78.6MB in the end (delta: 9.1MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.63ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 76.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.02ms. Allocated memory is still 117.4MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.09ms. Allocated memory is still 117.4MB. Free memory was 74.8MB in the beginning and 60.0MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 591.77ms. Allocated memory is still 117.4MB. Free memory was 60.0MB in the beginning and 84.1MB in the end (delta: -24.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 5.50ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 83.4MB in the end (delta: 7.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:47:02,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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 edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 04:47:05,436 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 04:47:05,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 04:47:05,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 04:47:05,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 04:47:05,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 04:47:05,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 04:47:05,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 04:47:05,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 04:47:05,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 04:47:05,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 04:47:05,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 04:47:05,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 04:47:05,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 04:47:05,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 04:47:05,644 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 04:47:05,644 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 04:47:05,644 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 04:47:05,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 04:47:05,645 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:47:05,645 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 04:47:05,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 04:47:05,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:47:05,646 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 04:47:05,646 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 04:47:05,646 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 04:47:05,647 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 04:47:05,647 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 04:47:05,647 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 04:47:05,647 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_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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 -> edf890099c9798c9c69d8dd05768ded1c839c8369ee71e4a749a5027b8540470 [2024-11-25 04:47:06,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 04:47:06,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 04:47:06,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 04:47:06,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 04:47:06,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 04:47:06,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2024-11-25 04:47:08,920 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/75b8a6db3/95d3880be2a04dd3af4e22e1286ca2e9/FLAG2f47fe406 [2024-11-25 04:47:09,277 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 04:47:09,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_32_bad.i [2024-11-25 04:47:09,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/75b8a6db3/95d3880be2a04dd3af4e22e1286ca2e9/FLAG2f47fe406 [2024-11-25 04:47:09,322 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/data/75b8a6db3/95d3880be2a04dd3af4e22e1286ca2e9 [2024-11-25 04:47:09,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 04:47:09,328 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 04:47:09,330 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 04:47:09,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 04:47:09,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 04:47:09,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:09" (1/1) ... [2024-11-25 04:47:09,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367498d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:09, skipping insertion in model container [2024-11-25 04:47:09,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:09" (1/1) ... [2024-11-25 04:47:09,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 04:47:10,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:47:10,409 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 04:47:10,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 04:47:10,681 INFO L204 MainTranslator]: Completed translation [2024-11-25 04:47:10,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10 WrapperNode [2024-11-25 04:47:10,681 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 04:47:10,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 04:47:10,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 04:47:10,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 04:47:10,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,712 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,734 INFO L138 Inliner]: procedures = 503, calls = 33, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-11-25 04:47:10,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 04:47:10,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 04:47:10,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 04:47:10,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 04:47:10,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,745 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,746 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,753 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,762 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 04:47:10,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 04:47:10,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 04:47:10,763 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 04:47:10,764 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:10" (1/1) ... [2024-11-25 04:47:10,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 04:47:10,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 04:47:10,804 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 04:47:10,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 04:47:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 04:47:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 04:47:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 04:47:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-25 04:47:11,036 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 04:47:11,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 04:47:11,212 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-25 04:47:11,212 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 04:47:11,285 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 04:47:11,285 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 04:47:11,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:11 BoogieIcfgContainer [2024-11-25 04:47:11,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 04:47:11,287 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 04:47:11,287 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 04:47:11,296 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 04:47:11,297 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:11" (1/1) ... [2024-11-25 04:47:11,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 04:47:11,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:47:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 04:47:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 04:47:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 04:47:11,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:47:11,377 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:47:11,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:47:11,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:47:11,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 04:47:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:11,641 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:47:11,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:11,899 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 04:47:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 04:47:11,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 04:47:12,002 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 04:47:12,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 04:47:12 ImpRootNode [2024-11-25 04:47:12,038 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 04:47:12,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 04:47:12,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 04:47:12,040 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 04:47:12,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:47:11" (3/4) ... [2024-11-25 04:47:12,043 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 04:47:12,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 04:47:12,044 INFO L158 Benchmark]: Toolchain (without parser) took 2716.82ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 29.9MB in the end (delta: 27.0MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2024-11-25 04:47:12,045 INFO L158 Benchmark]: CDTParser took 3.11ms. Allocated memory is still 83.9MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:12,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1351.88ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 51.8MB in the end (delta: 4.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-25 04:47:12,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.79ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:12,047 INFO L158 Benchmark]: Boogie Preprocessor took 27.27ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:12,048 INFO L158 Benchmark]: RCFGBuilder took 523.33ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 29.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 04:47:12,048 INFO L158 Benchmark]: CodeCheck took 751.60ms. Allocated memory is still 83.9MB. Free memory was 29.8MB in the beginning and 30.3MB in the end (delta: -497.0kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. [2024-11-25 04:47:12,050 INFO L158 Benchmark]: Witness Printer took 4.87ms. Allocated memory is still 83.9MB. Free memory was 30.3MB in the beginning and 29.9MB in the end (delta: 423.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 04:47:12,052 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: 0.7s, 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of fgets at line 1558. 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); [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, dataPtr1={7:0}, dataPtr2={7:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1572] 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 3.11ms. Allocated memory is still 83.9MB. Free memory was 64.7MB in the beginning and 64.6MB in the end (delta: 37.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1351.88ms. Allocated memory is still 83.9MB. Free memory was 56.6MB in the beginning and 51.8MB in the end (delta: 4.8MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.79ms. Allocated memory is still 83.9MB. Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.27ms. Allocated memory is still 83.9MB. Free memory was 49.1MB in the beginning and 47.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 523.33ms. Allocated memory is still 83.9MB. Free memory was 47.2MB in the beginning and 29.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 751.60ms. Allocated memory is still 83.9MB. Free memory was 29.8MB in the beginning and 30.3MB in the end (delta: -497.0kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB. * Witness Printer took 4.87ms. Allocated memory is still 83.9MB. Free memory was 30.3MB in the beginning and 29.9MB in the end (delta: 423.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 04:47:12,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28bbc2f0-78c2-40a6-a990-4e65bbb15dbe/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