./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_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_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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_24d56ef5-89ea-4baf-9156-a6410061d9f9/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 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:57:01,777 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:57:01,865 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:57:01,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:57:01,875 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:57:01,907 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:57:01,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:57:01,910 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:57:01,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:57:01,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:57:01,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:57:01,915 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:57:01,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:57:01,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:57:01,916 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:57:01,916 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:57:01,917 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:57:01,917 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:57:01,917 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:57:01,918 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:57:01,918 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:57:01,919 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:57:01,920 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:57:01,920 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:57:01,921 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:57:01,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:57:01,921 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:57:01,922 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:57:01,922 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:57:01,923 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:57:01,923 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:57:01,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:57:01,924 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_24d56ef5-89ea-4baf-9156-a6410061d9f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2024-11-08 22:57:02,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:57:02,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:57:02,224 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:57:02,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:57:02,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:57:02,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i Unable to find full path for "g++" [2024-11-08 22:57:04,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:57:04,731 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:57:04,732 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2024-11-08 22:57:04,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/69cff8fd2/3a0e44fdcf5f45d18c4498bedf422ab7/FLAG10e7362f6 [2024-11-08 22:57:04,789 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/69cff8fd2/3a0e44fdcf5f45d18c4498bedf422ab7 [2024-11-08 22:57:04,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:57:04,794 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:57:04,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:57:04,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:57:04,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:57:04,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:57:04" (1/1) ... [2024-11-08 22:57:04,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314d7c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:04, skipping insertion in model container [2024-11-08 22:57:04,806 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:57:04" (1/1) ... [2024-11-08 22:57:04,889 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:57:05,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:57:05,973 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:57:06,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:57:06,270 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:57:06,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06 WrapperNode [2024-11-08 22:57:06,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:57:06,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:57:06,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:57:06,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:57:06,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,303 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,331 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 71 [2024-11-08 22:57:06,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:57:06,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:57:06,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:57:06,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:57:06,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,349 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,349 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:57:06,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:57:06,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:57:06,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:57:06,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:57:06,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:57:06,407 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:57:06,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:57:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:57:06,441 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:57:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:57:06,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:57:06,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:57:06,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:57:06,588 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:57:06,590 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:57:06,772 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 22:57:06,772 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:57:06,811 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:57:06,811 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:57:06,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:06 BoogieIcfgContainer [2024-11-08 22:57:06,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:57:06,812 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:57:06,813 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:57:06,823 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:57:06,823 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:06" (1/1) ... [2024-11-08 22:57:06,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:57:06,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:57:06,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 22:57:06,893 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 22:57:06,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:57:06,897 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:57:06,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:57:07,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:07,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:57:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:07,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:57:07,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:07,268 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:57:07,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:57:07 ImpRootNode [2024-11-08 22:57:07,299 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:57:07,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:57:07,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:57:07,300 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:57:07,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:06" (3/4) ... [2024-11-08 22:57:07,304 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:57:07,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:57:07,309 INFO L158 Benchmark]: Toolchain (without parser) took 2513.10ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 97.1MB in the beginning and 128.3MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:07,310 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:07,311 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1474.75ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 96.6MB in the beginning and 109.2MB in the end (delta: -12.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. [2024-11-08 22:57:07,311 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.78ms. Allocated memory is still 167.8MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:57:07,312 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 105.1MB in the end (delta: 957.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:07,314 INFO L158 Benchmark]: RCFGBuilder took 448.08ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 89.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:57:07,315 INFO L158 Benchmark]: CodeCheck took 486.33ms. Allocated memory is still 167.8MB. Free memory was 89.2MB in the beginning and 128.3MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:07,316 INFO L158 Benchmark]: Witness Printer took 7.03ms. Allocated memory is still 167.8MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:07,320 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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 0.31ms. Allocated memory is still 98.6MB. Free memory is still 52.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1474.75ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 96.6MB in the beginning and 109.2MB in the end (delta: -12.6MB). Peak memory consumption was 53.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.78ms. Allocated memory is still 167.8MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 105.1MB in the end (delta: 957.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 448.08ms. Allocated memory is still 167.8MB. Free memory was 105.1MB in the beginning and 89.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 486.33ms. Allocated memory is still 167.8MB. Free memory was 89.2MB in the beginning and 128.3MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.03ms. Allocated memory is still 167.8MB. Free memory is still 128.3MB. 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 22:57:07,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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_24d56ef5-89ea-4baf-9156-a6410061d9f9/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 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:57:09,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:57:09,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:57:09,921 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:57:09,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:57:09,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:57:09,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:57:09,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:57:09,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:57:09,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:57:09,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:57:09,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:57:09,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:57:09,931 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:57:09,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:57:09,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:57:09,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:57:09,932 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:57:09,932 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:57:09,934 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:57:09,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:57:09,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:57:09,936 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:57:09,936 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:57:09,936 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:57:09,936 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:57:09,937 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:57:09,937 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:57:09,937 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:57:09,938 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:57:09,938 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:57:09,938 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:57:09,939 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:57:09,940 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:57:09,940 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:57:09,940 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_24d56ef5-89ea-4baf-9156-a6410061d9f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96d4963263642f4592b0ca397fa66ff996e958e14ed7b8874d6fd377a760563a [2024-11-08 22:57:10,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:57:10,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:57:10,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:57:10,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:57:10,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:57:10,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i Unable to find full path for "g++" [2024-11-08 22:57:12,501 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:57:12,909 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:57:12,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_44_bad.i [2024-11-08 22:57:12,943 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/a0beb6725/941559eb7d1c4f71af61031fad414928/FLAG666c3a96e [2024-11-08 22:57:13,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/data/a0beb6725/941559eb7d1c4f71af61031fad414928 [2024-11-08 22:57:13,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:57:13,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:57:13,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:57:13,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:57:13,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:57:13,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:57:13" (1/1) ... [2024-11-08 22:57:13,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f3af03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:13, skipping insertion in model container [2024-11-08 22:57:13,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:57:13" (1/1) ... [2024-11-08 22:57:13,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:57:14,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:57:14,357 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:57:14,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:57:14,597 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:57:14,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14 WrapperNode [2024-11-08 22:57:14,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:57:14,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:57:14,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:57:14,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:57:14,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,674 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70 [2024-11-08 22:57:14,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:57:14,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:57:14,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:57:14,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:57:14,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,699 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:57:14,705 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:57:14,705 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:57:14,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:57:14,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:57:14" (1/1) ... [2024-11-08 22:57:14,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:57:14,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:57:14,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:57:14,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:57:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:57:14,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:57:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 22:57:14,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:57:14,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:57:14,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:57:14,974 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:57:14,977 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:57:15,118 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 22:57:15,118 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:57:15,197 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:57:15,198 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:57:15,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:15 BoogieIcfgContainer [2024-11-08 22:57:15,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:57:15,199 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:57:15,199 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:57:15,207 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:57:15,207 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:15" (1/1) ... [2024-11-08 22:57:15,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:57:15,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:57:15,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-08 22:57:15,269 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-08 22:57:15,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-08 22:57:15,273 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:57:15,274 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:57:15,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:57:15,278 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:57:15,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:57:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:15,526 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:57:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:15,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:15,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:57:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:57:15,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:57:15,752 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 22:57:15,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:57:15 ImpRootNode [2024-11-08 22:57:15,787 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:57:15,789 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:57:15,789 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:57:15,789 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:57:15,790 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:57:15" (3/4) ... [2024-11-08 22:57:15,792 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:57:15,796 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:57:15,797 INFO L158 Benchmark]: Toolchain (without parser) took 2713.44ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 40.4MB in the end (delta: 10.0MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,798 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:15,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1512.77ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: -23.4kB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.39ms. Allocated memory is still 104.9MB. Free memory was 50.4MB in the beginning and 47.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,800 INFO L158 Benchmark]: Boogie Preprocessor took 29.74ms. Allocated memory is still 104.9MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,801 INFO L158 Benchmark]: RCFGBuilder took 493.10ms. Allocated memory is still 104.9MB. Free memory was 45.3MB in the beginning and 61.5MB in the end (delta: -16.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,801 INFO L158 Benchmark]: CodeCheck took 587.79ms. Allocated memory is still 104.9MB. Free memory was 61.3MB in the beginning and 41.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 22:57:15,802 INFO L158 Benchmark]: Witness Printer took 7.80ms. Allocated memory is still 104.9MB. Free memory was 41.1MB in the beginning and 40.4MB in the end (delta: 641.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:57:15,808 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565, overapproximation of large string literal at line 1577, overapproximation of fgets at line 1563. 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); [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1572] CALL funcPtr(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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 75.5MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1512.77ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 50.4MB in the end (delta: -23.4kB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.39ms. Allocated memory is still 104.9MB. Free memory was 50.4MB in the beginning and 47.4MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.74ms. Allocated memory is still 104.9MB. Free memory was 47.4MB in the beginning and 45.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 493.10ms. Allocated memory is still 104.9MB. Free memory was 45.3MB in the beginning and 61.5MB in the end (delta: -16.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * CodeCheck took 587.79ms. Allocated memory is still 104.9MB. Free memory was 61.3MB in the beginning and 41.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.80ms. Allocated memory is still 104.9MB. Free memory was 41.1MB in the beginning and 40.4MB in the end (delta: 641.4kB). 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 22:57:15,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24d56ef5-89ea-4baf-9156-a6410061d9f9/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