./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 4c9465e74913ebe90475157dc1cd7e8fd61bc99cb8f3e3e955fd5b4d6437ad79 --- 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 11:05:01,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:05:01,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:05:01,731 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:05:01,731 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:05:01,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:05:01,733 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:05:01,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:05:01,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:05:01,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:05:01,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:05:01,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:05:01,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:05:01,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:05:01,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:05:01,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:05:01,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:05:01,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:05:01,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:05:01,759 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:05:01,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:05:01,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:05:01,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:05:01,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:05:01,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:05:01,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:05:01,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:05:01,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:05:01,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:05:01,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:05:01,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:05:01,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:05:01,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:05:01,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:05:01,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:05:01,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:05:01,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:05:01,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:05:01,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:05:01,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:05:01,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:05:01,773 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 11:05:01,787 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:05:01,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:05:01,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:05:01,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:05:01,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:05:01,788 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:05:01,788 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:05:01,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:05:01,789 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:05:01,789 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:05:01,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:05:01,790 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:05:01,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:05:01,791 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:05:01,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:05:01,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:05:01,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:05:01,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:05:01,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:05:01,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:01,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:05:01,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:05:01,794 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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9465e74913ebe90475157dc1cd7e8fd61bc99cb8f3e3e955fd5b4d6437ad79 [2022-12-14 11:05:01,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:05:01,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:05:01,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:05:01,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:05:01,980 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:05:01,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:04,629 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:05:04,917 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:05:04,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:04,944 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/cef50d1ad/22cf8f3c514f4c508ae7bd69e04cd1f0/FLAGaa6774300 [2022-12-14 11:05:04,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/cef50d1ad/22cf8f3c514f4c508ae7bd69e04cd1f0 [2022-12-14 11:05:04,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:05:04,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:05:04,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:04,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:05:04,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:05:04,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:04" (1/1) ... [2022-12-14 11:05:04,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed5bed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:04, skipping insertion in model container [2022-12-14 11:05:04,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:04" (1/1) ... [2022-12-14 11:05:04,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:05:05,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:05:05,349 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:05:05,653 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:05:05,656 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:05,658 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:05,660 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:05,660 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:05,674 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:05:05,677 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:05:05,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:05,688 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:05:05,703 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:05:05,734 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:05:05,736 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:05,737 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:05,738 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:05,739 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:05,742 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:05:05,743 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:05:05,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:05,879 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:05:05,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05 WrapperNode [2022-12-14 11:05:05,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:05,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:05,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:05:05,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:05:05,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,921 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-12-14 11:05:05,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:05,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:05:05,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:05:05,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:05:05,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,938 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:05:05,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:05:05,941 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:05:05,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:05:05,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (1/1) ... [2022-12-14 11:05:05,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:05,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:05,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:05:05,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:05:05,995 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:05:05,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:05:05,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:05:05,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:05:05,996 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:05:05,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:05:05,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:05:06,106 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:05:06,108 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:05:06,227 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:05:06,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:05:06,258 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:05:06,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:06 BoogieIcfgContainer [2022-12-14 11:05:06,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:05:06,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:05:06,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:05:06,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:05:06,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:05:04" (1/3) ... [2022-12-14 11:05:06,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206a747f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:06, skipping insertion in model container [2022-12-14 11:05:06,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:05" (2/3) ... [2022-12-14 11:05:06,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@206a747f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:06, skipping insertion in model container [2022-12-14 11:05:06,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:06" (3/3) ... [2022-12-14 11:05:06,268 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:06,283 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:05:06,283 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:05:06,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:05:06,330 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;@6e57ec2d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:05:06,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:05:06,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 11:05:06,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 11:05:06,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:06,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:06,341 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:05:06,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:06,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 11:05:06,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:06,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297635302] [2022-12-14 11:05:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:06,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:06,779 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 11:05:06,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:05:06,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297635302] [2022-12-14 11:05:06,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297635302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:06,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:06,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:05:06,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607795237] [2022-12-14 11:05:06,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:06,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 11:05:06,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:05:06,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 11:05:06,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 11:05:06,822 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 11:05:06,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:06,874 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 11:05:06,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 11:05:06,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2022-12-14 11:05:06,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:06,880 INFO L225 Difference]: With dead ends: 15 [2022-12-14 11:05:06,880 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 11:05:06,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:05:06,886 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 20 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:05:06,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 11:05:06,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 11:05:06,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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 11:05:06,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 11:05:06,914 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 11:05:06,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:06,915 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 11:05:06,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 11:05:06,916 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 11:05:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:05:06,916 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:06,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:06,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:05:06,917 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:05:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:06,917 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2022-12-14 11:05:06,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:05:06,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707769807] [2022-12-14 11:05:06,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:06,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:05:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:05:06,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:05:06,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:05:06,994 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:05:06,994 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:05:06,996 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:05:06,998 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:05:06,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:05:07,002 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:05:07,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:05:07,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:05:07 BoogieIcfgContainer [2022-12-14 11:05:07,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:05:07,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:05:07,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:05:07,029 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:05:07,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:06" (3/4) ... [2022-12-14 11:05:07,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:05:07,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:05:07,034 INFO L158 Benchmark]: Toolchain (without parser) took 2071.85ms. Allocated memory is still 157.3MB. Free memory was 90.3MB in the beginning and 98.1MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:05:07,034 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:05:07,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 916.82ms. Allocated memory is still 157.3MB. Free memory was 90.0MB in the beginning and 106.4MB in the end (delta: -16.4MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-12-14 11:05:07,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.09ms. Allocated memory is still 157.3MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:05:07,036 INFO L158 Benchmark]: Boogie Preprocessor took 17.92ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:05:07,036 INFO L158 Benchmark]: RCFGBuilder took 319.68ms. Allocated memory is still 157.3MB. Free memory was 101.6MB in the beginning and 86.2MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:05:07,036 INFO L158 Benchmark]: TraceAbstraction took 765.91ms. Allocated memory is still 157.3MB. Free memory was 85.5MB in the beginning and 99.2MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:05:07,037 INFO L158 Benchmark]: Witness Printer took 4.10ms. Allocated memory is still 157.3MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:05:07,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 98.6MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 916.82ms. Allocated memory is still 157.3MB. Free memory was 90.0MB in the beginning and 106.4MB in the end (delta: -16.4MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.09ms. Allocated memory is still 157.3MB. Free memory was 106.4MB in the beginning and 103.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.92ms. Allocated memory is still 157.3MB. Free memory was 103.6MB in the beginning and 102.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.68ms. Allocated memory is still 157.3MB. Free memory was 101.6MB in the beginning and 86.2MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 765.91ms. Allocated memory is still 157.3MB. Free memory was 85.5MB in the beginning and 99.2MB in the end (delta: -13.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.10ms. Allocated memory is still 157.3MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483652:2147483650}, argv={2147483652:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data++ VAL [data=2147483647, data++=2147483647, dataPtr={7:0}, dataPtr={7:0}, 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: 1578]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 8 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.3s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 11:05:07,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 4c9465e74913ebe90475157dc1cd7e8fd61bc99cb8f3e3e955fd5b4d6437ad79 --- 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 11:05:08,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:05:08,869 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:05:08,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:05:08,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:05:08,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:05:08,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:05:08,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:05:08,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:05:08,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:05:08,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:05:08,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:05:08,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:05:08,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:05:08,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:05:08,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:05:08,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:05:08,902 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:05:08,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:05:08,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:05:08,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:05:08,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:05:08,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:05:08,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:05:08,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:05:08,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:05:08,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:05:08,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:05:08,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:05:08,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:05:08,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:05:08,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:05:08,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:05:08,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:05:08,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:05:08,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:05:08,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:05:08,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:05:08,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:05:08,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:05:08,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:05:08,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 11:05:08,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:05:08,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:05:08,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:05:08,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:05:08,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:05:08,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:05:08,951 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:05:08,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:05:08,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:05:08,951 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:05:08,951 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:05:08,952 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:05:08,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:05:08,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:05:08,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:05:08,954 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 11:05:08,954 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:05:08,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:05:08,954 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:05:08,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:05:08,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:08,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:05:08,955 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:05:08,956 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:05:08,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:05:08,956 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:05:08,956 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:05:08,956 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_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c9465e74913ebe90475157dc1cd7e8fd61bc99cb8f3e3e955fd5b4d6437ad79 [2022-12-14 11:05:09,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:05:09,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:05:09,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:05:09,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:05:09,216 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:05:09,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:11,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:05:12,102 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:05:12,102 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:12,121 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/92077d622/4b62c02c094149999d0aa8e48e7863eb/FLAG97a6d89e3 [2022-12-14 11:05:12,133 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/data/92077d622/4b62c02c094149999d0aa8e48e7863eb [2022-12-14 11:05:12,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:05:12,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:05:12,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:12,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:05:12,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:05:12,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:12" (1/1) ... [2022-12-14 11:05:12,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f83398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:12, skipping insertion in model container [2022-12-14 11:05:12,143 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:05:12" (1/1) ... [2022-12-14 11:05:12,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:05:12,187 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:05:12,505 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:05:12,807 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:05:12,812 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:12,813 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:12,815 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:12,816 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:12,834 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:05:12,837 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:05:12,841 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:12,853 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:05:12,870 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 11:05:12,912 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 11:05:12,913 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:12,914 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 11:05:12,915 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:12,916 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 11:05:12,919 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 11:05:12,920 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 11:05:12,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:05:13,015 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:05:13,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13 WrapperNode [2022-12-14 11:05:13,016 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:05:13,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:13,017 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:05:13,017 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:05:13,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,070 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-12-14 11:05:13,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:05:13,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:05:13,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:05:13,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:05:13,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,102 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:05:13,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:05:13,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:05:13,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:05:13,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (1/1) ... [2022-12-14 11:05:13,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:05:13,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:05:13,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:05:13,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:05:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 11:05:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 11:05:13,172 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 11:05:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:05:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 11:05:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:05:13,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:05:13,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:05:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 11:05:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:05:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 11:05:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 11:05:13,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 11:05:13,301 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:05:13,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:05:13,458 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:05:13,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:05:13,465 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 11:05:13,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:13 BoogieIcfgContainer [2022-12-14 11:05:13,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:05:13,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:05:13,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:05:13,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:05:13,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:05:12" (1/3) ... [2022-12-14 11:05:13,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5addede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:13, skipping insertion in model container [2022-12-14 11:05:13,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:05:13" (2/3) ... [2022-12-14 11:05:13,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5addede4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:05:13, skipping insertion in model container [2022-12-14 11:05:13,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:13" (3/3) ... [2022-12-14 11:05:13,476 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_63_bad.i [2022-12-14 11:05:13,497 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:05:13,497 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:05:13,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:05:13,554 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;@3c550d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:05:13,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:05:13,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 11:05:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 11:05:13,575 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:13,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:13,576 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:05:13,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:13,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 11:05:13,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:05:13,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937371832] [2022-12-14 11:05:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:13,616 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 11:05:13,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:05:13,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:13,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:05:13,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:05:13,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:05:13,790 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 11:05:13,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:05:13,790 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:05:13,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937371832] [2022-12-14 11:05:13,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937371832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:05:13,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:05:13,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 11:05:13,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681545255] [2022-12-14 11:05:13,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:05:13,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:05:13,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:05:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:05:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:05:13,820 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11:05:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:05:13,837 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 11:05:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:05:13,839 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-12-14 11:05:13,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:05:13,845 INFO L225 Difference]: With dead ends: 23 [2022-12-14 11:05:13,845 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 11:05:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:05:13,851 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:05:13,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:05:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 11:05:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 11:05:13,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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 11:05:13,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 11:05:13,885 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 11:05:13,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:05:13,886 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 11:05:13,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11:05:13,886 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 11:05:13,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 11:05:13,888 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:05:13,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:05:13,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 11:05:14,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:05:14,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 11:05:14,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:05:14,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805012592] [2022-12-14 11:05:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:05:14,090 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 11:05:14,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:05:14,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:05:14,206 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:05:14,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:05:14,294 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 11:05:14,294 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:05:14,296 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 11:05:14,298 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 11:05:14,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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 11:05:14,509 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:05:14,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:05:14,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:05:14 BoogieIcfgContainer [2022-12-14 11:05:14,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:05:14,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:05:14,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:05:14,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:05:14,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:05:13" (3/4) ... [2022-12-14 11:05:14,595 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:05:14,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:05:14,597 INFO L158 Benchmark]: Toolchain (without parser) took 2458.66ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.9MB in the beginning and 35.5MB in the end (delta: 5.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,599 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.5MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:05:14,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 877.81ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.6MB in the beginning and 52.7MB in the end (delta: -12.1MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.16ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 49.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,603 INFO L158 Benchmark]: Boogie Preprocessor took 39.05ms. Allocated memory is still 92.3MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,604 INFO L158 Benchmark]: RCFGBuilder took 355.86ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 58.1MB in the end (delta: -10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,606 INFO L158 Benchmark]: TraceAbstraction took 1114.14ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 35.9MB in the end (delta: 21.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-12-14 11:05:14,607 INFO L158 Benchmark]: Witness Printer took 10.43ms. Allocated memory is still 92.3MB. Free memory was 35.9MB in the beginning and 35.5MB in the end (delta: 448.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:05:14,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.5MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 877.81ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 40.6MB in the beginning and 52.7MB in the end (delta: -12.1MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.16ms. Allocated memory is still 92.3MB. Free memory was 52.7MB in the beginning and 49.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.05ms. Allocated memory is still 92.3MB. Free memory was 49.4MB in the beginning and 47.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.86ms. Allocated memory is still 92.3MB. Free memory was 47.3MB in the beginning and 58.1MB in the end (delta: -10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1114.14ms. Allocated memory is still 92.3MB. Free memory was 57.5MB in the beginning and 35.9MB in the end (delta: 21.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Witness Printer took 10.43ms. Allocated memory is still 92.3MB. Free memory was 35.9MB in the beginning and 35.5MB in the end (delta: 448.7kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_63_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_63b_badSink(&data) [L1576] EXPR \read(*dataPtr) [L1576] int data = *dataPtr; [L1578] data++ VAL [data=2147483647, data++=2147483647, dataPtr={7:0}, dataPtr={7:0}, 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 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, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 1 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 11:05:14,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af6d52b6-e0ae-452e-a1e6-d7485ef3e14f/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