./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:27:55,669 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:27:55,764 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 19:27:55,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:27:55,773 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:27:55,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:27:55,801 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:27:55,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:27:55,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:27:55,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:27:55,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:27:55,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:27:55,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:27:55,809 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:27:55,810 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:27:55,810 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:27:55,812 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:27:55,814 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:27:55,815 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:27:55,815 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:27:55,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:27:55,816 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:27:55,820 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:27:55,820 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:27:55,821 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:27:55,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:27:55,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:27:55,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:27:55,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:27:55,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:27:55,823 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:27:55,824 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:27:55,824 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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-08 19:27:56,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:27:56,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:27:56,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:27:56,203 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:27:56,205 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:27:56,206 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i Unable to find full path for "g++" [2024-11-08 19:27:58,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:27:58,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:27:58,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-08 19:27:58,780 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/e21af62c7/9d0c1bc9e6b14b58abaea30e93e56132/FLAG3f8bf009c [2024-11-08 19:27:58,944 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/e21af62c7/9d0c1bc9e6b14b58abaea30e93e56132 [2024-11-08 19:27:58,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:27:58,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:27:58,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:27:58,950 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:27:58,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:27:58,957 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:27:58" (1/1) ... [2024-11-08 19:27:58,958 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20a5915d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:27:58, skipping insertion in model container [2024-11-08 19:27:58,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:27:58" (1/1) ... [2024-11-08 19:27:59,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:28:00,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:28:00,196 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:28:00,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:28:00,536 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:28:00,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00 WrapperNode [2024-11-08 19:28:00,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:28:00,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:28:00,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:28:00,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:28:00,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,607 INFO L138 Inliner]: procedures = 499, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 76 [2024-11-08 19:28:00,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:28:00,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:28:00,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:28:00,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:28:00,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,629 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,631 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,632 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:28:00,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:28:00,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:28:00,636 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:28:00,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:00" (1/1) ... [2024-11-08 19:28:00,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:28:00,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:28:00,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:28:00,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:28:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:28:00,717 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:28:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:28:00,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 19:28:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:28:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:28:00,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:28:00,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:28:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 19:28:00,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:28:00,888 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:28:00,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:28:01,037 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-08 19:28:01,037 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:28:01,085 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:28:01,085 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:28:01,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:01 BoogieIcfgContainer [2024-11-08 19:28:01,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:28:01,087 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:28:01,087 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:28:01,098 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:28:01,098 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:01" (1/1) ... [2024-11-08 19:28:01,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:28:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:28:01,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:28:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:28:01,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:28:01,169 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:28:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:28:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:01,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:28:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:01,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:28:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:01,693 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:28:01,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:28:01 ImpRootNode [2024-11-08 19:28:01,744 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:28:01,745 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:28:01,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:28:01,746 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:28:01,747 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:01" (3/4) ... [2024-11-08 19:28:01,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:28:01,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:28:01,754 INFO L158 Benchmark]: Toolchain (without parser) took 2806.11ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 117.6MB in the beginning and 171.9MB in the end (delta: -54.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:01,756 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 115.3MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:01,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1587.28ms. Allocated memory is still 163.6MB. Free memory was 117.0MB in the beginning and 101.9MB in the end (delta: 15.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-11-08 19:28:01,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.82ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 98.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:28:01,759 INFO L158 Benchmark]: Boogie Preprocessor took 26.83ms. Allocated memory is still 163.6MB. Free memory was 98.4MB in the beginning and 97.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:01,760 INFO L158 Benchmark]: RCFGBuilder took 450.39ms. Allocated memory is still 163.6MB. Free memory was 97.1MB in the beginning and 80.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 19:28:01,761 INFO L158 Benchmark]: CodeCheck took 657.90ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 80.9MB in the beginning and 172.8MB in the end (delta: -91.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:01,762 INFO L158 Benchmark]: Witness Printer took 8.26ms. Allocated memory is still 209.7MB. Free memory was 172.8MB in the beginning and 171.9MB in the end (delta: 919.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:01,767 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: 0.6s, 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_predec_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={20586:0}, 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_predec_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 0.40ms. Allocated memory is still 115.3MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1587.28ms. Allocated memory is still 163.6MB. Free memory was 117.0MB in the beginning and 101.9MB in the end (delta: 15.2MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.82ms. Allocated memory is still 163.6MB. Free memory was 101.9MB in the beginning and 98.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.83ms. Allocated memory is still 163.6MB. Free memory was 98.4MB in the beginning and 97.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 450.39ms. Allocated memory is still 163.6MB. Free memory was 97.1MB in the beginning and 80.9MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 657.90ms. Allocated memory was 163.6MB in the beginning and 209.7MB in the end (delta: 46.1MB). Free memory was 80.9MB in the beginning and 172.8MB in the end (delta: -91.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.26ms. Allocated memory is still 209.7MB. Free memory was 172.8MB in the beginning and 171.9MB in the end (delta: 919.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:28:01,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:28:04,420 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:28:04,526 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 19:28:04,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:28:04,579 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:28:04,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:28:04,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:28:04,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:28:04,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:28:04,585 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:28:04,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:28:04,586 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:28:04,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:28:04,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:28:04,587 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:28:04,588 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:28:04,588 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:28:04,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:28:04,589 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:28:04,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:28:04,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:28:04,594 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:28:04,595 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:28:04,595 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:28:04,596 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:28:04,596 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:28:04,596 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 19:28:04,597 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:28:04,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:28:04,598 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:28:04,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:28:04,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:28:04,599 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 19:28:04,599 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:28:04,600 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 19:28:04,600 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_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ec8a5463484ce6681a16db041bd4e6c0f07ec517f293596fff7439151b39a98 [2024-11-08 19:28:05,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:28:05,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:28:05,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:28:05,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:28:05,073 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:28:05,075 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i Unable to find full path for "g++" [2024-11-08 19:28:07,377 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:28:07,827 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:28:07,827 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_63_bad.i [2024-11-08 19:28:07,864 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/532d054a9/65b35a8dbae442e689f03eefab2f8275/FLAGadadef901 [2024-11-08 19:28:07,888 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/data/532d054a9/65b35a8dbae442e689f03eefab2f8275 [2024-11-08 19:28:07,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:28:07,895 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:28:07,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:28:07,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:28:07,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:28:07,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:28:07" (1/1) ... [2024-11-08 19:28:07,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d124eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:07, skipping insertion in model container [2024-11-08 19:28:07,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:28:07" (1/1) ... [2024-11-08 19:28:07,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:28:09,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:28:09,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:28:09,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:28:09,401 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:28:09,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09 WrapperNode [2024-11-08 19:28:09,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:28:09,403 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:28:09,403 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:28:09,403 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:28:09,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,483 INFO L138 Inliner]: procedures = 504, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2024-11-08 19:28:09,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:28:09,484 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:28:09,484 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:28:09,484 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:28:09,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:28:09,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:28:09,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:28:09,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:28:09,526 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:28:09" (1/1) ... [2024-11-08 19:28:09,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:28:09,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:28:09,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:28:09,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:28:09,605 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:28:09,605 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:28:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:28:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 19:28:09,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:28:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:28:09,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:28:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-08 19:28:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:28:09,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-08 19:28:09,851 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:28:09,854 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:28:10,083 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-08 19:28:10,083 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:28:10,173 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:28:10,173 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:28:10,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:10 BoogieIcfgContainer [2024-11-08 19:28:10,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:28:10,174 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:28:10,174 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:28:10,185 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:28:10,186 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:10" (1/1) ... [2024-11-08 19:28:10,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:28:10,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:28:10,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2024-11-08 19:28:10,260 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-08 19:28:10,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:28:10,266 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:28:10,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 19:28:10,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 19:28:10,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 19:28:10,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 19:28:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:10,578 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:28:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:10,820 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:28:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:28:10,918 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 19:28:10,919 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 19:28:10,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:28:10 ImpRootNode [2024-11-08 19:28:10,962 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:28:10,963 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:28:10,966 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:28:10,967 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:28:10,967 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:28:10" (3/4) ... [2024-11-08 19:28:10,971 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:28:10,972 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:28:10,973 INFO L158 Benchmark]: Toolchain (without parser) took 3080.22ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 51.9MB in the beginning and 50.3MB in the end (delta: 1.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-08 19:28:10,974 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 54.5MB. Free memory is still 30.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:10,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1505.07ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 70.3MB in the end (delta: -18.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2024-11-08 19:28:10,975 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.63ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 67.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:28:10,976 INFO L158 Benchmark]: Boogie Preprocessor took 36.38ms. Allocated memory is still 98.6MB. Free memory was 67.1MB in the beginning and 65.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:28:10,977 INFO L158 Benchmark]: RCFGBuilder took 652.75ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 45.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:28:10,978 INFO L158 Benchmark]: CodeCheck took 787.83ms. Allocated memory is still 98.6MB. Free memory was 45.7MB in the beginning and 50.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:10,979 INFO L158 Benchmark]: Witness Printer took 9.38ms. Allocated memory is still 98.6MB. Free memory was 50.9MB in the beginning and 50.3MB in the end (delta: 551.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:28:10,983 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_predec_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_predec_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 0.33ms. Allocated memory is still 54.5MB. Free memory is still 30.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1505.07ms. Allocated memory was 79.7MB in the beginning and 98.6MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 70.3MB in the end (delta: -18.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.63ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 67.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.38ms. Allocated memory is still 98.6MB. Free memory was 67.1MB in the beginning and 65.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.75ms. Allocated memory is still 98.6MB. Free memory was 65.1MB in the beginning and 45.7MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 787.83ms. Allocated memory is still 98.6MB. Free memory was 45.7MB in the beginning and 50.9MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.38ms. Allocated memory is still 98.6MB. Free memory was 50.9MB in the beginning and 50.3MB in the end (delta: 551.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:28:11,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_981b29e0-4bb8-4a41-9107-4f2cf86e92a4/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