./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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 e341d5d5b6ed8e590139076106fa6fd595ee882611aa787b9756fbff6de0ebe9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:29:28,930 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:29:29,055 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 19:29:29,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:29:29,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:29:29,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:29:29,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:29:29,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:29:29,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:29:29,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:29:29,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:29:29,105 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:29:29,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:29:29,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:29:29,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:29:29,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:29:29,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:29:29,108 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:29:29,109 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:29:29,110 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:29:29,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:29:29,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:29:29,115 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:29:29,116 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:29:29,116 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:29:29,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:29:29,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:29:29,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:29:29,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:29:29,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:29:29,123 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:29:29,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:29:29,124 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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e341d5d5b6ed8e590139076106fa6fd595ee882611aa787b9756fbff6de0ebe9 [2024-11-08 19:29:29,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:29:29,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:29:29,507 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:29:29,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:29:29,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:29:29,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i Unable to find full path for "g++" [2024-11-08 19:29:32,097 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:29:32,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:29:32,490 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i [2024-11-08 19:29:32,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/0d2126a63/eb2378e979744b01a70b3d3699247e93/FLAG4c9f2c0b4 [2024-11-08 19:29:32,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/0d2126a63/eb2378e979744b01a70b3d3699247e93 [2024-11-08 19:29:32,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:29:32,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:29:32,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:29:32,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:29:32,562 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:29:32,563 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:29:32" (1/1) ... [2024-11-08 19:29:32,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cfdf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:32, skipping insertion in model container [2024-11-08 19:29:32,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:29:32" (1/1) ... [2024-11-08 19:29:32,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:29:34,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:29:34,047 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:29:34,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:29:34,489 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:29:34,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34 WrapperNode [2024-11-08 19:29:34,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:29:34,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:29:34,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:29:34,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:29:34,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,575 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-08 19:29:34,576 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:29:34,577 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:29:34,577 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:29:34,577 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:29:34,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,607 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:29:34,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:29:34,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:29:34,617 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:29:34,618 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:34" (1/1) ... [2024-11-08 19:29:34,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:29:34,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:29:34,679 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:29:34,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:29:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:29:34,736 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:29:34,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:29:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:29:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:29:34,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:29:34,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:29:34,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:29:34,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:29:34,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:29:34,946 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:29:34,949 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:29:35,131 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-08 19:29:35,132 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:29:35,198 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:29:35,199 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:29:35,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:35 BoogieIcfgContainer [2024-11-08 19:29:35,200 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:29:35,201 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:29:35,202 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:29:35,216 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:29:35,217 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:35" (1/1) ... [2024-11-08 19:29:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:29:35,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:29:35,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:29:35,314 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:29:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:29:35,320 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:29:35,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:29:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:35,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:29:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:35,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:29:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:35,934 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:29:35,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:29:35 ImpRootNode [2024-11-08 19:29:35,984 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:29:35,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:29:35,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:29:35,989 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:29:35,990 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:35" (3/4) ... [2024-11-08 19:29:35,994 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:29:35,996 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:29:35,998 INFO L158 Benchmark]: Toolchain (without parser) took 3445.33ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 101.2MB in the beginning and 93.9MB in the end (delta: 7.3MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-11-08 19:29:35,999 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 146.8MB. Free memory was 89.8MB in the beginning and 89.6MB in the end (delta: 149.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1936.03ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 101.2MB in the beginning and 141.0MB in the end (delta: -39.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.40ms. Allocated memory is still 203.4MB. Free memory was 141.0MB in the beginning and 137.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,003 INFO L158 Benchmark]: Boogie Preprocessor took 38.21ms. Allocated memory is still 203.4MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,004 INFO L158 Benchmark]: RCFGBuilder took 584.25ms. Allocated memory is still 203.4MB. Free memory was 136.9MB in the beginning and 120.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,005 INFO L158 Benchmark]: CodeCheck took 783.27ms. Allocated memory is still 203.4MB. Free memory was 119.0MB in the beginning and 94.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 19:29:36,007 INFO L158 Benchmark]: Witness Printer took 9.80ms. Allocated memory is still 203.4MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:29:36,012 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: 0.7s, 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 - 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_postdec_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={2448:0}, 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_postdec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 146.8MB. Free memory was 89.8MB in the beginning and 89.6MB in the end (delta: 149.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1936.03ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 101.2MB in the beginning and 141.0MB in the end (delta: -39.8MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.40ms. Allocated memory is still 203.4MB. Free memory was 141.0MB in the beginning and 137.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.21ms. Allocated memory is still 203.4MB. Free memory was 137.9MB in the beginning and 136.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.25ms. Allocated memory is still 203.4MB. Free memory was 136.9MB in the beginning and 120.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 783.27ms. Allocated memory is still 203.4MB. Free memory was 119.0MB in the beginning and 94.9MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 9.80ms. Allocated memory is still 203.4MB. Free memory was 94.9MB in the beginning and 93.9MB in the end (delta: 1.0MB). 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 19:29:36,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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 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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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 e341d5d5b6ed8e590139076106fa6fd595ee882611aa787b9756fbff6de0ebe9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:29:39,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:29:39,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 19:29:39,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:29:39,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:29:39,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:29:39,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:29:39,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:29:39,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:29:39,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:29:39,229 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:29:39,230 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:29:39,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:29:39,231 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:29:39,231 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:29:39,233 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:29:39,234 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:29:39,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:29:39,234 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:29:39,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:29:39,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:29:39,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:29:39,240 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:29:39,240 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:29:39,240 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:29:39,240 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:29:39,241 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 19:29:39,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:29:39,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:29:39,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:29:39,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:29:39,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:29:39,242 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 19:29:39,243 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:29:39,243 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 19:29:39,245 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_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e341d5d5b6ed8e590139076106fa6fd595ee882611aa787b9756fbff6de0ebe9 [2024-11-08 19:29:39,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:29:39,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:29:39,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:29:39,687 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:29:39,687 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:29:39,689 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i Unable to find full path for "g++" [2024-11-08 19:29:41,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:29:42,396 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:29:42,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_63_bad.i [2024-11-08 19:29:42,430 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/e23f155cb/2ec11c50281e4b878f6b739cae5936bb/FLAGa230b197c [2024-11-08 19:29:42,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/data/e23f155cb/2ec11c50281e4b878f6b739cae5936bb [2024-11-08 19:29:42,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:29:42,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:29:42,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:29:42,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:29:42,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:29:42,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:29:42" (1/1) ... [2024-11-08 19:29:42,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbc5517 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:42, skipping insertion in model container [2024-11-08 19:29:42,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:29:42" (1/1) ... [2024-11-08 19:29:42,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:29:43,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:29:43,771 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:29:43,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:29:44,205 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:29:44,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44 WrapperNode [2024-11-08 19:29:44,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:29:44,208 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:29:44,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:29:44,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:29:44,217 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,261 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,302 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-08 19:29:44,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:29:44,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:29:44,304 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:29:44,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:29:44,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:29:44,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:29:44,370 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:29:44,370 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:29:44,371 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:29:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:29:44,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:29:44,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:29:44,462 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:29:44,462 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:29:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:29:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 19:29:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:29:44,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:29:44,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:29:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 19:29:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:29:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 19:29:44,655 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:29:44,658 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:29:44,874 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 19:29:44,874 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:29:44,942 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:29:44,942 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:29:44,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:44 BoogieIcfgContainer [2024-11-08 19:29:44,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:29:44,944 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:29:44,944 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:29:44,955 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:29:44,956 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:44" (1/1) ... [2024-11-08 19:29:44,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:29:45,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:29:45,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:29:45,032 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:29:45,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:29:45,038 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:29:45,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:29:45,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:29:45,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:29:45,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 19:29:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:45,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:29:45,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:45,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:29:45,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:29:45,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 19:29:45,754 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:29:45,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:29:45 ImpRootNode [2024-11-08 19:29:45,807 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:29:45,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:29:45,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:29:45,810 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:29:45,812 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:29:44" (3/4) ... [2024-11-08 19:29:45,816 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:29:45,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:29:45,818 INFO L158 Benchmark]: Toolchain (without parser) took 3258.93ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 39.8MB in the beginning and 69.6MB in the end (delta: -29.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:29:45,819 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:29:45,820 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1646.56ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 39.6MB in the beginning and 61.8MB in the end (delta: -22.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2024-11-08 19:29:45,821 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.86ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:29:45,822 INFO L158 Benchmark]: Boogie Preprocessor took 64.58ms. Allocated memory is still 100.7MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:29:45,824 INFO L158 Benchmark]: RCFGBuilder took 573.51ms. Allocated memory is still 100.7MB. Free memory was 56.2MB in the beginning and 65.2MB in the end (delta: -9.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:29:45,825 INFO L158 Benchmark]: CodeCheck took 863.15ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 69.6MB in the end (delta: -4.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2024-11-08 19:29:45,826 INFO L158 Benchmark]: Witness Printer took 7.95ms. Allocated memory is still 100.7MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:29:45,834 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: 0.8s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - 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_postdec_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_postdec_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory was 47.0MB in the beginning and 46.9MB in the end (delta: 92.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1646.56ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 39.6MB in the beginning and 61.8MB in the end (delta: -22.2MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.86ms. Allocated memory is still 100.7MB. Free memory was 61.8MB in the beginning and 58.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.58ms. Allocated memory is still 100.7MB. Free memory was 58.8MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.51ms. Allocated memory is still 100.7MB. Free memory was 56.2MB in the beginning and 65.2MB in the end (delta: -9.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 863.15ms. Allocated memory is still 100.7MB. Free memory was 64.7MB in the beginning and 69.6MB in the end (delta: -4.9MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 7.95ms. Allocated memory is still 100.7MB. Free memory is still 69.6MB. 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 19:29:45,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca5d1ec-1abc-4ca8-878a-48fd367434eb/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample