./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:57:48,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:57:48,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:57:48,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:57:48,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:57:48,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:57:48,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:57:48,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:57:48,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:57:48,689 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:57:48,689 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:57:48,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:57:48,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:57:48,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:57:48,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:57:48,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:57:48,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:57:48,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:57:48,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:57:48,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:57:48,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:57:48,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:57:48,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:57:48,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:57:48,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:57:48,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:57:48,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:57:48,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:57:48,701 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:57:48,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:57:48,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:57:48,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:57:48,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:57:48,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:57:48,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:57:48,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:57:48,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:57:48,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:57:48,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:57:48,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:57:48,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:57:48,706 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:57:48,720 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:57:48,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:57:48,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:57:48,721 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:57:48,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:57:48,721 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:57:48,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:57:48,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:57:48,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:57:48,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:57:48,729 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:57:48,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:57:48,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:57:48,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:57:48,731 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:57:48,731 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2022-12-13 12:57:48,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:57:48,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:57:48,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:57:48,917 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:57:48,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:57:48,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:51,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:57:51,763 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:57:51,764 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:51,781 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/c2c5f6259/59b7af2f70a644a49a65359e1a4f2a83/FLAGd98aae38f [2022-12-13 12:57:51,795 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/c2c5f6259/59b7af2f70a644a49a65359e1a4f2a83 [2022-12-13 12:57:51,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:57:51,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:57:51,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:51,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:57:51,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:57:51,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:51" (1/1) ... [2022-12-13 12:57:51,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265fa7a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:51, skipping insertion in model container [2022-12-13 12:57:51,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:51" (1/1) ... [2022-12-13 12:57:51,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:57:51,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:57:52,165 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:57:52,472 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:57:52,476 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:52,478 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:52,480 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:52,480 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:52,499 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:57:52,502 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:57:52,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:52,511 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:57:52,527 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:57:52,579 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:57:52,580 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:52,581 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:52,582 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:52,583 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:52,586 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:57:52,587 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:57:52,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:52,659 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:57:52,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52 WrapperNode [2022-12-13 12:57:52,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:52,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:52,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:57:52,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:57:52,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,695 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-12-13 12:57:52,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:52,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:57:52,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:57:52,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:57:52,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,711 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:57:52,714 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:57:52,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:57:52,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:57:52,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (1/1) ... [2022-12-13 12:57:52,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:57:52,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:52,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:52,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:57:52,774 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:57:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:57:52,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:57:52,775 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:57:52,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:57:52,901 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:57:52,904 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:57:53,012 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:57:53,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:57:53,018 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:57:53,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:53 BoogieIcfgContainer [2022-12-13 12:57:53,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:57:53,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:57:53,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:57:53,025 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:57:53,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:57:51" (1/3) ... [2022-12-13 12:57:53,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b0660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:57:53, skipping insertion in model container [2022-12-13 12:57:53,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:52" (2/3) ... [2022-12-13 12:57:53,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b0660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:57:53, skipping insertion in model container [2022-12-13 12:57:53,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:53" (3/3) ... [2022-12-13 12:57:53,028 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:53,042 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:57:53,043 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:57:53,082 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:57:53,088 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@69de0119, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:57:53,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:57:53,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:57:53,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:57:53,097 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:57:53,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:53,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:57:53,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:53,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 12:57:53,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:57:53,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111591556] [2022-12-13 12:57:53,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:53,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:57:53,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:53,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:53,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:53,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:57:53,252 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:57:53,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:57:53,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:57:53,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:57:53,258 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 12:57:53,262 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:57:53,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:57:53 BoogieIcfgContainer [2022-12-13 12:57:53,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:57:53,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:57:53,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:57:53,278 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:57:53,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:53" (3/4) ... [2022-12-13 12:57:53,281 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:57:53,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:57:53,282 INFO L158 Benchmark]: Toolchain (without parser) took 1483.23ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 76.0MB in the beginning and 81.4MB in the end (delta: -5.4MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,283 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:57:53,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 859.28ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 75.7MB in the beginning and 71.5MB in the end (delta: 4.2MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.24ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 68.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,284 INFO L158 Benchmark]: Boogie Preprocessor took 17.39ms. Allocated memory is still 138.4MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,284 INFO L158 Benchmark]: RCFGBuilder took 306.84ms. Allocated memory is still 138.4MB. Free memory was 66.7MB in the beginning and 99.0MB in the end (delta: -32.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,285 INFO L158 Benchmark]: TraceAbstraction took 254.40ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 81.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 12:57:53,285 INFO L158 Benchmark]: Witness Printer took 3.86ms. Allocated memory is still 138.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:57:53,287 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 859.28ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 75.7MB in the beginning and 71.5MB in the end (delta: 4.2MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.24ms. Allocated memory is still 138.4MB. Free memory was 71.5MB in the beginning and 68.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.39ms. Allocated memory is still 138.4MB. Free memory was 68.1MB in the beginning and 66.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.84ms. Allocated memory is still 138.4MB. Free memory was 66.7MB in the beginning and 99.0MB in the end (delta: -32.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 254.40ms. Allocated memory is still 138.4MB. Free memory was 98.1MB in the beginning and 81.4MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.86ms. Allocated memory is still 138.4MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741827:1073741831}, argv={1073741827:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570] CALL badSink(data) [L1551] data - 1 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:57:53,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 12:57:55,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:57:55,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:57:55,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:57:55,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:57:55,070 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:57:55,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:57:55,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:57:55,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:57:55,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:57:55,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:57:55,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:57:55,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:57:55,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:57:55,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:57:55,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:57:55,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:57:55,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:57:55,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:57:55,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:57:55,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:57:55,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:57:55,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:57:55,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:57:55,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:57:55,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:57:55,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:57:55,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:57:55,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:57:55,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:57:55,092 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:57:55,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:57:55,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:57:55,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:57:55,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:57:55,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:57:55,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:57:55,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:57:55,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:57:55,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:57:55,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:57:55,098 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:57:55,121 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:57:55,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:57:55,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:57:55,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:57:55,122 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:57:55,123 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:57:55,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:57:55,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:57:55,123 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:57:55,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:57:55,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:57:55,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:57:55,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:57:55,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:57:55,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:57:55,125 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:57:55,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:57:55,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:57:55,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:57:55,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:57:55,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:57:55,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:57:55,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:57:55,128 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:57:55,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:57:55,128 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:57:55,128 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:57:55,128 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21ff04a61b981c145eb2eb054e3d306e60567d5d2ca4b5cae90d44f67d7eb3c4 [2022-12-13 12:57:55,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:57:55,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:57:55,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:57:55,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:57:55,372 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:57:55,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:57,915 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:57:58,193 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:57:58,193 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:58,212 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/8623be594/f31d2256e5774aa18806da6250589f52/FLAGa1c40a739 [2022-12-13 12:57:58,475 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/data/8623be594/f31d2256e5774aa18806da6250589f52 [2022-12-13 12:57:58,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:57:58,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:57:58,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:58,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:57:58,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:57:58,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:58" (1/1) ... [2022-12-13 12:57:58,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756f42e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:58, skipping insertion in model container [2022-12-13 12:57:58,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:57:58" (1/1) ... [2022-12-13 12:57:58,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:57:58,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:57:58,791 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:57:59,124 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:57:59,129 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:59,131 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:59,133 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:59,134 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:59,167 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:57:59,170 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:57:59,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:59,184 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:57:59,203 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:57:59,258 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:57:59,259 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:59,260 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:57:59,263 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:59,264 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:57:59,268 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:57:59,270 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:57:59,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:57:59,363 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:57:59,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59 WrapperNode [2022-12-13 12:57:59,363 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:57:59,364 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:59,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:57:59,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:57:59,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,414 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 52 [2022-12-13 12:57:59,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:57:59,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:57:59,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:57:59,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:57:59,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,431 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:57:59,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:57:59,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:57:59,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:57:59,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (1/1) ... [2022-12-13 12:57:59,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:57:59,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:57:59,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:57:59,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:57:59,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:57:59,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:57:59,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:57:59,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:57:59,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:57:59,727 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:57:59,733 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:57:59,733 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:57:59,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:59 BoogieIcfgContainer [2022-12-13 12:57:59,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:57:59,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:57:59,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:57:59,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:57:59,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:57:58" (1/3) ... [2022-12-13 12:57:59,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:57:59, skipping insertion in model container [2022-12-13 12:57:59,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:57:59" (2/3) ... [2022-12-13 12:57:59,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797bccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:57:59, skipping insertion in model container [2022-12-13 12:57:59,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:59" (3/3) ... [2022-12-13 12:57:59,743 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_41_bad.i [2022-12-13 12:57:59,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:57:59,759 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:57:59,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:57:59,801 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31c04da9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:57:59,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:57:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 12:57:59,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:57:59,811 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:57:59,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:57:59,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:57:59,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:57:59,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 12:57:59,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:57:59,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248794438] [2022-12-13 12:57:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:57:59,828 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:57:59,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:57:59,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 12:57:59,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 12:57:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:57:59,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:57:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:58:00,020 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:58:00,022 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:58:00,023 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:58:00,025 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:58:00,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:58:00,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 12:58:00,238 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 12:58:00,250 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:58:00,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:58:00 BoogieIcfgContainer [2022-12-13 12:58:00,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:58:00,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:58:00,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:58:00,327 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:58:00,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:57:59" (3/4) ... [2022-12-13 12:58:00,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:58:00,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:58:00,341 INFO L158 Benchmark]: Toolchain (without parser) took 1860.65ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 83.1MB in the beginning and 103.2MB in the end (delta: -20.1MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,342 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:58:00,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.72ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,345 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.10ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 78.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,347 INFO L158 Benchmark]: Boogie Preprocessor took 20.15ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,348 INFO L158 Benchmark]: RCFGBuilder took 299.85ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 62.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,350 INFO L158 Benchmark]: TraceAbstraction took 588.09ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 61.6MB in the beginning and 103.2MB in the end (delta: -41.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2022-12-13 12:58:00,351 INFO L158 Benchmark]: Witness Printer took 11.21ms. Allocated memory is still 132.1MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:58:00,358 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.72ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.4MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.10ms. Allocated memory is still 109.1MB. Free memory was 81.6MB in the beginning and 78.3MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.15ms. Allocated memory is still 109.1MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.85ms. Allocated memory is still 109.1MB. Free memory was 76.2MB in the beginning and 62.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 588.09ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 61.6MB in the beginning and 103.2MB in the end (delta: -41.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * Witness Printer took 11.21ms. Allocated memory is still 132.1MB. Free memory is still 103.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1563] data = atoi(inputBuffer) [L1560] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1570] CALL badSink(data) [L1551] data - 1 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 12:58:00,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1b6000e-8f17-47f2-97a3-8cb2c0b28f17/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample