./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_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_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd07cbd63d09d5ea9090f26e4c61f069d0edc15a19da1ad81d8362635553e7b1 --- 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 [2022-12-14 15:16:07,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:16:07,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:16:07,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:16:07,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:16:07,842 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:16:07,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:16:07,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:16:07,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:16:07,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:16:07,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:16:07,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:16:07,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:16:07,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:16:07,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:16:07,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:16:07,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:16:07,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:16:07,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:16:07,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:16:07,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:16:07,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:16:07,859 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:16:07,860 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:16:07,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:16:07,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:16:07,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:16:07,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:16:07,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:16:07,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:16:07,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:16:07,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:16:07,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:16:07,865 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:16:07,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:16:07,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:16:07,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:16:07,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:16:07,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:16:07,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:16:07,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:16:07,869 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:16:07,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:16:07,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:16:07,883 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:16:07,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:16:07,884 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:16:07,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:16:07,884 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:16:07,885 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:16:07,885 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:16:07,885 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:16:07,885 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:16:07,885 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:16:07,885 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:16:07,886 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:16:07,886 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:16:07,886 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:16:07,886 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:16:07,886 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:16:07,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:16:07,887 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:16:07,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:16:07,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:16:07,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:16:07,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:16:07,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:16:07,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:16:07,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:07,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:16:07,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:16:07,891 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:16:07,891 INFO L138 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_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd07cbd63d09d5ea9090f26e4c61f069d0edc15a19da1ad81d8362635553e7b1 [2022-12-14 15:16:08,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:16:08,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:16:08,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:16:08,085 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:16:08,085 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:16:08,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:10,582 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:16:10,871 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:16:10,872 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:10,892 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/207bad03b/d18b589a4f4f4e9b9f60a4754031575f/FLAGa0b7a92ac [2022-12-14 15:16:10,906 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/207bad03b/d18b589a4f4f4e9b9f60a4754031575f [2022-12-14 15:16:10,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:16:10,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:16:10,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:10,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:16:10,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:16:10,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:10" (1/1) ... [2022-12-14 15:16:10,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b5e6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:10, skipping insertion in model container [2022-12-14 15:16:10,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:10" (1/1) ... [2022-12-14 15:16:10,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:16:10,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:16:11,177 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:16:11,444 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:16:11,448 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:11,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:11,452 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:11,452 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:11,473 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:16:11,475 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:16:11,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:11,485 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:16:11,500 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:16:11,530 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:16:11,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:11,532 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:11,533 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:11,534 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:11,536 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:16:11,538 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:16:11,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:11,639 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:16:11,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11 WrapperNode [2022-12-14 15:16:11,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:11,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:11,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:16:11,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:16:11,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,695 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 15:16:11,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:11,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:16:11,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:16:11,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:16:11,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,716 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:16:11,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:16:11,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:16:11,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:16:11,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (1/1) ... [2022-12-14 15:16:11,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:11,751 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:16:11,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:16:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:16:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:16:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:16:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:16:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:16:11,899 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:16:11,901 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:16:12,000 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:16:12,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:16:12,023 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:16:12,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:12 BoogieIcfgContainer [2022-12-14 15:16:12,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:16:12,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:16:12,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:16:12,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:16:12,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:16:10" (1/3) ... [2022-12-14 15:16:12,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fca05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:12, skipping insertion in model container [2022-12-14 15:16:12,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:11" (2/3) ... [2022-12-14 15:16:12,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35fca05b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:12, skipping insertion in model container [2022-12-14 15:16:12,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:12" (3/3) ... [2022-12-14 15:16:12,031 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:12,044 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:16:12,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:16:12,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:16:12,081 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=FINITE_AUTOMATA, 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;@6e9cdfe9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:16:12,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:16:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-12-14 15:16:12,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:16:12,090 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:12,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:12,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:16:12,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:12,095 INFO L85 PathProgramCache]: Analyzing trace with hash -39583869, now seen corresponding path program 1 times [2022-12-14 15:16:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:12,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462839418] [2022-12-14 15:16:12,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:12,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:12,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:12,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:16:12,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462839418] [2022-12-14 15:16:12,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462839418] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:12,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:12,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:16:12,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480541825] [2022-12-14 15:16:12,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:12,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:12,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:16:12,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:12,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:12,313 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:16:12,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:12,349 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 15:16:12,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:12,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-12-14 15:16:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:12,357 INFO L225 Difference]: With dead ends: 21 [2022-12-14 15:16:12,357 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 15:16:12,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:12,366 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:12,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:12,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 15:16:12,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 15:16:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:16:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 15:16:12,393 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 15:16:12,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:12,394 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 15:16:12,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:16:12,395 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 15:16:12,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 15:16:12,395 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:12,396 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:12,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:16:12,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:16:12,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:12,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1227099880, now seen corresponding path program 1 times [2022-12-14 15:16:12,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:16:12,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473525140] [2022-12-14 15:16:12,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:12,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:16:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:16:12,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:16:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:16:12,450 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:16:12,450 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:16:12,451 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:16:12,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:16:12,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:16:12,456 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 15:16:12,459 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:16:12,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:16:12 BoogieIcfgContainer [2022-12-14 15:16:12,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:16:12,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:16:12,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:16:12,477 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:16:12,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:12" (3/4) ... [2022-12-14 15:16:12,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:16:12,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:16:12,482 INFO L158 Benchmark]: Toolchain (without parser) took 1571.70ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.2MB in the beginning and 99.7MB in the end (delta: -16.6MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-12-14 15:16:12,482 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:12,482 INFO L158 Benchmark]: CACSL2BoogieTranslator took 728.82ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.2MB in the beginning and 95.0MB in the end (delta: -11.8MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2022-12-14 15:16:12,483 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.05ms. Allocated memory is still 144.7MB. Free memory was 95.0MB in the beginning and 91.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:16:12,483 INFO L158 Benchmark]: Boogie Preprocessor took 23.82ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 90.8MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:12,484 INFO L158 Benchmark]: RCFGBuilder took 304.72ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 75.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:16:12,484 INFO L158 Benchmark]: TraceAbstraction took 449.63ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 99.7MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:12,485 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 144.7MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:12,487 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 89.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 728.82ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 83.2MB in the beginning and 95.0MB in the end (delta: -11.8MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.05ms. Allocated memory is still 144.7MB. Free memory was 95.0MB in the beginning and 91.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.82ms. Allocated memory is still 144.7MB. Free memory was 91.7MB in the beginning and 90.8MB in the end (delta: 867.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 304.72ms. Allocated memory is still 144.7MB. Free memory was 90.4MB in the beginning and 75.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 449.63ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 99.7MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 144.7MB. Free memory is still 99.7MB. 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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); [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741830:1073741829}, argv={1073741830:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1581] return data; [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1554] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [data=1073741824, 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: 1556]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-12-14 15:16:12,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd07cbd63d09d5ea9090f26e4c61f069d0edc15a19da1ad81d8362635553e7b1 --- 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 [2022-12-14 15:16:14,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:16:14,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:16:14,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:16:14,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:16:14,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:16:14,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:16:14,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:16:14,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:16:14,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:16:14,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:16:14,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:16:14,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:16:14,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:16:14,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:16:14,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:16:14,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:16:14,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:16:14,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:16:14,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:16:14,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:16:14,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:16:14,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:16:14,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:16:14,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:16:14,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:16:14,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:16:14,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:16:14,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:16:14,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:16:14,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:16:14,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:16:14,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:16:14,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:16:14,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:16:14,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:16:14,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:16:14,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:16:14,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:16:14,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:16:14,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:16:14,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 15:16:14,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:16:14,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:16:14,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:16:14,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:16:14,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:16:14,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:16:14,230 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:16:14,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:16:14,230 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:16:14,230 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:16:14,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:16:14,231 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:16:14,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:16:14,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:16:14,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:16:14,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:16:14,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:16:14,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:16:14,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:14,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:16:14,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:16:14,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:16:14,235 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:16:14,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:16:14,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:16:14,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:16:14,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:16:14,236 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd07cbd63d09d5ea9090f26e4c61f069d0edc15a19da1ad81d8362635553e7b1 [2022-12-14 15:16:14,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:16:14,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:16:14,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:16:14,462 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:16:14,462 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:16:14,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:17,114 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:16:17,382 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:16:17,382 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:17,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/a92ef7d3d/46feb43221984ce8b2781d7d57f20489/FLAG536359622 [2022-12-14 15:16:17,412 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/data/a92ef7d3d/46feb43221984ce8b2781d7d57f20489 [2022-12-14 15:16:17,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:16:17,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:16:17,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:17,417 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:16:17,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:16:17,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:17" (1/1) ... [2022-12-14 15:16:17,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21051fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:17, skipping insertion in model container [2022-12-14 15:16:17,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:16:17" (1/1) ... [2022-12-14 15:16:17,428 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:16:17,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:16:17,733 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:16:18,022 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:16:18,027 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:18,028 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:18,030 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:18,031 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:18,053 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:16:18,056 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:16:18,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:18,072 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:16:18,092 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:16:18,146 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:16:18,148 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:18,149 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:16:18,151 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:18,152 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:16:18,157 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:16:18,159 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:16:18,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:16:18,245 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:16:18,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18 WrapperNode [2022-12-14 15:16:18,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:16:18,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:18,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:16:18,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:16:18,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,295 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-14 15:16:18,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:16:18,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:16:18,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:16:18,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:16:18,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,320 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:16:18,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:16:18,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:16:18,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:16:18,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (1/1) ... [2022-12-14 15:16:18,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:16:18,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:16:18,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:16:18,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:16:18,387 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:16:18,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:16:18,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:16:18,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 15:16:18,529 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:16:18,530 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:16:18,651 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:16:18,656 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:16:18,656 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:16:18,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:18 BoogieIcfgContainer [2022-12-14 15:16:18,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:16:18,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:16:18,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:16:18,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:16:18,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:16:17" (1/3) ... [2022-12-14 15:16:18,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee42131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:18, skipping insertion in model container [2022-12-14 15:16:18,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:16:18" (2/3) ... [2022-12-14 15:16:18,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee42131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:16:18, skipping insertion in model container [2022-12-14 15:16:18,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:18" (3/3) ... [2022-12-14 15:16:18,664 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_61_bad.i [2022-12-14 15:16:18,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:16:18,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:16:18,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:16:18,720 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=FINITE_AUTOMATA, 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;@5734bec9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:16:18,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:16:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-12-14 15:16:18,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 15:16:18,730 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:18,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:18,731 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:16:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:18,735 INFO L85 PathProgramCache]: Analyzing trace with hash -761706190, now seen corresponding path program 1 times [2022-12-14 15:16:18,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:16:18,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070007659] [2022-12-14 15:16:18,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:18,748 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 [2022-12-14 15:16:18,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:16:18,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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) [2022-12-14 15:16:18,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:16:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:16:18,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:16:18,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:16:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:16:18,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:16:18,928 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:16:18,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070007659] [2022-12-14 15:16:18,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070007659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:16:18,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:16:18,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:16:18,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652780695] [2022-12-14 15:16:18,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:16:18,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:16:18,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:16:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:16:18,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:18,975 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 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) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:16:19,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:16:19,021 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-12-14 15:16:19,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:16:19,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-14 15:16:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:16:19,030 INFO L225 Difference]: With dead ends: 30 [2022-12-14 15:16:19,030 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 15:16:19,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:16:19,035 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 8 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:16:19,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 50 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:16:19,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 15:16:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 15:16:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:16:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 15:16:19,068 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 13 [2022-12-14 15:16:19,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:16:19,069 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 15:16:19,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:16:19,070 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 15:16:19,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 15:16:19,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:16:19,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:16:19,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:16:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:16:19,273 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:16:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:16:19,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2138055351, now seen corresponding path program 1 times [2022-12-14 15:16:19,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:16:19,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422349051] [2022-12-14 15:16:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:16:19,275 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 [2022-12-14 15:16:19,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:16:19,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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) [2022-12-14 15:16:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 (3)] Waiting until timeout for monitored process [2022-12-14 15:16:19,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:16:19,394 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:16:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:16:19,444 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:16:19,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:16:19,446 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:16:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:16:19,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 (3)] Ended with exit code 0 [2022-12-14 15:16:19,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:16:19,659 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 15:16:19,669 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:16:19,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:16:19 BoogieIcfgContainer [2022-12-14 15:16:19,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:16:19,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:16:19,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:16:19,722 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:16:19,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:16:18" (3/4) ... [2022-12-14 15:16:19,725 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:16:19,726 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:16:19,726 INFO L158 Benchmark]: Toolchain (without parser) took 2310.25ms. Allocated memory is still 73.4MB. Free memory was 48.8MB in the beginning and 29.4MB in the end (delta: 19.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-12-14 15:16:19,727 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:19,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 828.65ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 34.4MB in the end (delta: 14.2MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-14 15:16:19,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.56ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 31.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:16:19,728 INFO L158 Benchmark]: Boogie Preprocessor took 29.42ms. Allocated memory is still 73.4MB. Free memory was 31.2MB in the beginning and 29.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:19,728 INFO L158 Benchmark]: RCFGBuilder took 328.43ms. Allocated memory is still 73.4MB. Free memory was 47.6MB in the beginning and 33.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:16:19,728 INFO L158 Benchmark]: TraceAbstraction took 1061.89ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 29.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:19,729 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 73.4MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:16:19,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 828.65ms. Allocated memory is still 73.4MB. Free memory was 48.6MB in the beginning and 34.4MB in the end (delta: 14.2MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.56ms. Allocated memory is still 73.4MB. Free memory was 34.4MB in the beginning and 31.2MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.42ms. Allocated memory is still 73.4MB. Free memory was 31.2MB in the beginning and 29.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 328.43ms. Allocated memory is still 73.4MB. Free memory was 47.6MB in the beginning and 33.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1061.89ms. Allocated memory is still 73.4MB. Free memory was 33.0MB in the beginning and 29.8MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 73.4MB. Free memory is still 29.4MB. 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: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1574. 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] [L1563] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1563] 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] [L1564] CALL CWE190_Integer_Overflow__int_fgets_multiply_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1574] data = atoi(inputBuffer) [L1571] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1581] return data; VAL [\old(data)=0, \result=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_multiply_61b_badSource(data) [L1554] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [data=1073741824, 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: 1556]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-12-14 15:16:19,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c146241c-79df-4db0-bdd0-d2d7e7bab0d4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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