./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/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_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk --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 0.2.5-dev-a016563 [2024-11-08 23:15:53,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:15:53,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:15:53,682 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:15:53,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:15:53,719 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:15:53,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:15:53,722 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:15:53,723 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:15:53,724 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:15:53,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:15:53,725 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:15:53,726 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:15:53,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:15:53,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:15:53,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:15:53,729 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:15:53,729 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:15:53,730 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:15:53,730 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:15:53,730 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:15:53,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:15:53,735 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:15:53,736 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:15:53,736 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:15:53,736 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:15:53,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:15:53,748 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:15:53,748 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:15:53,748 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:15:53,749 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:15:53,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:15:53,749 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-11-08 23:15:54,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:15:54,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:15:54,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:15:54,101 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:15:54,102 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:15:54,103 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i Unable to find full path for "g++" [2024-11-08 23:15:56,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:15:56,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:15:56,433 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-08 23:15:56,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/0b66f4fbc/de0da6371497422fa0b2d7aab13b4ab3/FLAGd74577836 [2024-11-08 23:15:56,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/0b66f4fbc/de0da6371497422fa0b2d7aab13b4ab3 [2024-11-08 23:15:56,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:15:56,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:15:56,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:15:56,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:15:56,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:15:56,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:56" (1/1) ... [2024-11-08 23:15:56,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8510e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:56, skipping insertion in model container [2024-11-08 23:15:56,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:15:56" (1/1) ... [2024-11-08 23:15:56,549 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:15:57,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:15:57,640 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:15:57,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:15:57,893 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:15:57,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57 WrapperNode [2024-11-08 23:15:57,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:15:57,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:15:57,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:15:57,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:15:57,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,949 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-08 23:15:57,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:15:57,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:15:57,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:15:57,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:15:57,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,975 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,979 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:15:57,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:15:57,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:15:57,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:15:57,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:15:57" (1/1) ... [2024-11-08 23:15:57,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:15:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:15:58,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:15:58,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:15:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:15:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:15:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 23:15:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 23:15:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:15:58,199 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:15:58,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:15:58,350 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 23:15:58,350 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:15:58,428 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:15:58,428 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:15:58,428 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:58 BoogieIcfgContainer [2024-11-08 23:15:58,429 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:15:58,429 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:15:58,430 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:15:58,448 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:15:58,448 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:58" (1/1) ... [2024-11-08 23:15:58,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:15:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:15:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:15:58,516 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:15:58,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:15:58,520 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:15:58,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:15:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:15:58,745 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:15:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:15:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:15:58,939 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:15:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:15:58,989 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:15:59,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:15:59 ImpRootNode [2024-11-08 23:15:59,030 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:15:59,032 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:15:59,032 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:15:59,033 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:15:59,033 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:15:58" (3/4) ... [2024-11-08 23:15:59,038 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:15:59,039 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:15:59,041 INFO L158 Benchmark]: Toolchain (without parser) took 2564.45ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 72.1MB in the end (delta: 21.2MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-11-08 23:15:59,042 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:15:59,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1416.01ms. Allocated memory is still 132.1MB. Free memory was 92.9MB in the beginning and 71.6MB in the end (delta: 21.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-08 23:15:59,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.71ms. Allocated memory is still 132.1MB. Free memory was 71.6MB in the beginning and 68.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:15:59,044 INFO L158 Benchmark]: Boogie Preprocessor took 29.64ms. Allocated memory is still 132.1MB. Free memory was 68.6MB in the beginning and 67.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:15:59,046 INFO L158 Benchmark]: RCFGBuilder took 448.46ms. Allocated memory is still 132.1MB. Free memory was 67.1MB in the beginning and 97.2MB in the end (delta: -30.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-08 23:15:59,047 INFO L158 Benchmark]: CodeCheck took 600.43ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 72.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 23:15:59,048 INFO L158 Benchmark]: Witness Printer took 8.34ms. Allocated memory is still 132.1MB. Free memory was 72.8MB in the beginning and 72.1MB in the end (delta: 738.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:15:59,051 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, 16 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 - 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 large string literal at line 1569, 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={31113:0}, 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 0.30ms. Allocated memory is still 132.1MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1416.01ms. Allocated memory is still 132.1MB. Free memory was 92.9MB in the beginning and 71.6MB in the end (delta: 21.2MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.71ms. Allocated memory is still 132.1MB. Free memory was 71.6MB in the beginning and 68.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.64ms. Allocated memory is still 132.1MB. Free memory was 68.6MB in the beginning and 67.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 448.46ms. Allocated memory is still 132.1MB. Free memory was 67.1MB in the beginning and 97.2MB in the end (delta: -30.1MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * CodeCheck took 600.43ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 72.8MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.34ms. Allocated memory is still 132.1MB. Free memory was 72.8MB in the beginning and 72.1MB in the end (delta: 738.0kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:15:59,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/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_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk --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 0.2.5-dev-a016563 [2024-11-08 23:16:01,580 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:16:01,702 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:16:01,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:16:01,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:16:01,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:16:01,779 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:16:01,780 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:16:01,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:16:01,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:16:01,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:16:01,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:16:01,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:16:01,787 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:16:01,788 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:16:01,788 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:16:01,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:16:01,789 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:16:01,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:16:01,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:16:01,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:16:01,795 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:16:01,795 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:16:01,796 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:16:01,796 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:16:01,796 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:16:01,797 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:16:01,797 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:16:01,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:16:01,798 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:16:01,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:16:01,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:16:01,802 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:16:01,802 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:16:01,803 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:16:01,804 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7cfceb607367ceb5ddc9da4b4b337a554f2ce50f021f91119f80bf80cdbfb52 [2024-11-08 23:16:02,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:16:02,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:16:02,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:16:02,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:16:02,362 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:16:02,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i Unable to find full path for "g++" [2024-11-08 23:16:04,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:16:05,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:16:05,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_bad.i [2024-11-08 23:16:05,232 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/0ec82bb31/5ad054610b1e4c719d3d1d3ba3bbc9dc/FLAG50a4eb72a [2024-11-08 23:16:05,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/data/0ec82bb31/5ad054610b1e4c719d3d1d3ba3bbc9dc [2024-11-08 23:16:05,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:16:05,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:16:05,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:16:05,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:16:05,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:16:05,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:16:05" (1/1) ... [2024-11-08 23:16:05,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c5ec694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:05, skipping insertion in model container [2024-11-08 23:16:05,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:16:05" (1/1) ... [2024-11-08 23:16:05,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:16:06,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:16:06,772 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:16:06,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:16:07,159 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:16:07,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07 WrapperNode [2024-11-08 23:16:07,160 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:16:07,161 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:16:07,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:16:07,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:16:07,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,247 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 23:16:07,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:16:07,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:16:07,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:16:07,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:16:07,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,278 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,290 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:16:07,292 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:16:07,292 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:16:07,292 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:16:07,293 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:16:07" (1/1) ... [2024-11-08 23:16:07,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:16:07,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:16:07,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:16:07,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:16:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:16:07,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:16:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 23:16:07,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:16:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:16:07,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:16:07,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:16:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 23:16:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 23:16:07,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 23:16:07,691 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:16:07,694 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:16:07,982 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 23:16:07,982 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:16:08,063 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:16:08,063 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:16:08,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:16:08 BoogieIcfgContainer [2024-11-08 23:16:08,064 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:16:08,065 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:16:08,065 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:16:08,084 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:16:08,084 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:16:08" (1/1) ... [2024-11-08 23:16:08,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:16:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:16:08,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 23:16:08,188 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 23:16:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:16:08,194 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:16:08,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:16:08,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:16:08,197 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:16:08,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:16:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:16:08,497 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:16:08,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:16:08,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:16:08,855 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:16:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:16:08,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 23:16:08,998 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:16:09,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:16:09 ImpRootNode [2024-11-08 23:16:09,043 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:16:09,044 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:16:09,044 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:16:09,044 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:16:09,045 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:16:08" (3/4) ... [2024-11-08 23:16:09,051 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:16:09,053 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:16:09,054 INFO L158 Benchmark]: Toolchain (without parser) took 3796.74ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 32.7MB in the beginning and 39.7MB in the end (delta: -7.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,055 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 65.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:16:09,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1901.41ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 32.3MB in the beginning and 60.3MB in the end (delta: -27.9MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.42ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 57.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,057 INFO L158 Benchmark]: Boogie Preprocessor took 41.65ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,058 INFO L158 Benchmark]: RCFGBuilder took 772.38ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 63.3MB in the end (delta: -8.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,061 INFO L158 Benchmark]: CodeCheck took 978.14ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 40.1MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 23:16:09,062 INFO L158 Benchmark]: Witness Printer took 9.19ms. Allocated memory is still 96.5MB. Free memory was 40.1MB in the beginning and 39.7MB in the end (delta: 420.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:16:09,070 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, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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 - 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 large string literal at line 1569, 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 0.23ms. Allocated memory is still 65.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1901.41ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 32.3MB in the beginning and 60.3MB in the end (delta: -27.9MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.42ms. Allocated memory is still 96.5MB. Free memory was 60.3MB in the beginning and 57.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.65ms. Allocated memory is still 96.5MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.38ms. Allocated memory is still 96.5MB. Free memory was 55.0MB in the beginning and 63.3MB in the end (delta: -8.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 978.14ms. Allocated memory is still 96.5MB. Free memory was 63.3MB in the beginning and 40.1MB in the end (delta: 23.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 9.19ms. Allocated memory is still 96.5MB. Free memory was 40.1MB in the beginning and 39.7MB in the end (delta: 420.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:16:09,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5361e562-df89-4d65-86d3-a0fbe1d59d16/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample