./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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 7daf704980f3efccd5e7e6d91c20fb9107bc3b22244b185cbf0dc27809790d15 --- 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 13:56:48,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:56:48,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:56:48,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:56:48,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:56:48,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:56:48,706 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:56:48,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:56:48,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:56:48,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:56:48,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:56:48,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:56:48,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:56:48,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:56:48,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:56:48,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:56:48,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:56:48,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:56:48,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:56:48,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:56:48,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:56:48,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:56:48,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:56:48,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:56:48,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:56:48,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:56:48,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:56:48,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:56:48,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:56:48,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:56:48,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:56:48,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:56:48,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:56:48,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:56:48,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:56:48,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:56:48,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:56:48,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:56:48,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:56:48,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:56:48,737 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:56:48,738 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 13:56:48,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:56:48,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:56:48,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:56:48,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:56:48,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:56:48,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:56:48,759 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:56:48,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:56:48,759 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:56:48,759 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:56:48,759 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:56:48,759 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:56:48,760 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:56:48,760 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:56:48,760 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:56:48,760 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:56:48,760 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:56:48,760 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:56:48,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:56:48,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:56:48,762 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:56:48,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:56:48,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:56:48,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:56:48,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:48,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:56:48,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:56:48,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:56:48,764 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:56:48,764 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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7daf704980f3efccd5e7e6d91c20fb9107bc3b22244b185cbf0dc27809790d15 [2022-12-14 13:56:48,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:56:48,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:56:48,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:56:48,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:56:48,979 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:56:48,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:56:51,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:56:51,834 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:56:51,835 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:56:51,850 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/f092ddb5b/5e55a953a4d84b8286a9c2b34fa7dde9/FLAG0c3eeef3f [2022-12-14 13:56:51,861 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/f092ddb5b/5e55a953a4d84b8286a9c2b34fa7dde9 [2022-12-14 13:56:51,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:56:51,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:56:51,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:51,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:56:51,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:56:51,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:51" (1/1) ... [2022-12-14 13:56:51,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211e9934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:51, skipping insertion in model container [2022-12-14 13:56:51,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:51" (1/1) ... [2022-12-14 13:56:51,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:56:51,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:56:52,261 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:56:52,600 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:56:52,604 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:52,606 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:52,607 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:52,607 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:52,907 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:56:52,909 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:56:52,913 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:52,920 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:56:52,932 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:56:52,965 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:56:52,966 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:52,967 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:56:52,969 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:52,970 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:56:52,981 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:56:52,982 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:56:52,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:56:53,230 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:56:53,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53 WrapperNode [2022-12-14 13:56:53,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:53,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:53,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:56:53,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:56:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,278 INFO L138 Inliner]: procedures = 942, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 59 [2022-12-14 13:56:53,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:56:53,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:56:53,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:56:53,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:56:53,286 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:56:53,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:56:53,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:56:53,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:56:53,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (1/1) ... [2022-12-14 13:56:53,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:53,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:56:53,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:56:53,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:56:53,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:56:53,352 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:56:53,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:56:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:56:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 13:56:53,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:56:53,469 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:56:53,471 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:56:53,572 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:56:53,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:56:53,596 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:56:53,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:53 BoogieIcfgContainer [2022-12-14 13:56:53,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:56:53,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:56:53,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:56:53,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:56:53,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:56:51" (1/3) ... [2022-12-14 13:56:53,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2bd093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:53, skipping insertion in model container [2022-12-14 13:56:53,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:53" (2/3) ... [2022-12-14 13:56:53,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c2bd093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:56:53, skipping insertion in model container [2022-12-14 13:56:53,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:53" (3/3) ... [2022-12-14 13:56:53,605 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:56:53,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:56:53,619 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:56:53,654 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:56:53,659 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;@2b0be1a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:56:53,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:56:53,662 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 13:56:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 13:56:53,668 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:53,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:53,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:56:53,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:53,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1025977461, now seen corresponding path program 1 times [2022-12-14 13:56:53,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:56:53,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267789216] [2022-12-14 13:56:53,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:53,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:56:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 13:56:53,814 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 13:56:53,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 13:56:53,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267789216] [2022-12-14 13:56:53,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267789216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 13:56:53,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 13:56:53,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 13:56:53,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125165364] [2022-12-14 13:56:53,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 13:56:53,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 13:56:53,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 13:56:53,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 13:56:53,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 13:56:53,841 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 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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 13:56:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 13:56:53,863 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 13:56:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 13:56:53,865 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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 13:56:53,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 13:56:53,870 INFO L225 Difference]: With dead ends: 15 [2022-12-14 13:56:53,870 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 13:56:53,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 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 13:56:53,874 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 13:56:53,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 13:56:53,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 13:56:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 13:56:53,897 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 13:56:53,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 13:56:53,898 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 13:56:53,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 13:56:53,899 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 13:56:53,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 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 13:56:53,899 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 13:56:53,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 13:56:53,900 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:56:53,900 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:56:53,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 13:56:53,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:56:53,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:56:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1740530165, now seen corresponding path program 1 times [2022-12-14 13:56:53,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:56:53,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393461174] [2022-12-14 13:56:53,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:53,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 13:56:53,925 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 13:56:53,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878646170] [2022-12-14 13:56:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:56:53,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:56:53,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:56:53,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 13:56:53,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 13:56:54,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:54,004 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 13:56:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:56:54,046 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 13:56:54,047 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 13:56:54,049 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 13:56:54,050 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 13:56:54,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 13:56:54,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 13:56:54,262 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 13:56:54,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 13:56:54,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 01:56:54 BoogieIcfgContainer [2022-12-14 13:56:54,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 13:56:54,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 13:56:54,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 13:56:54,341 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 13:56:54,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:56:53" (3/4) ... [2022-12-14 13:56:54,351 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 13:56:54,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 13:56:54,353 INFO L158 Benchmark]: Toolchain (without parser) took 2487.62ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 85.3MB in the beginning and 68.6MB in the end (delta: 16.7MB). Peak memory consumption was 44.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,354 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 78.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:56:54,356 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1365.50ms. Allocated memory is still 134.2MB. Free memory was 85.3MB in the beginning and 50.4MB in the end (delta: 35.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,357 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.03ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 50.4MB in the beginning and 124.2MB in the end (delta: -73.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,359 INFO L158 Benchmark]: Boogie Preprocessor took 17.14ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,361 INFO L158 Benchmark]: RCFGBuilder took 301.21ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 106.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,362 INFO L158 Benchmark]: TraceAbstraction took 738.21ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 69.7MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 13:56:54,365 INFO L158 Benchmark]: Witness Printer took 10.96ms. Allocated memory is still 161.5MB. Free memory was 69.7MB in the beginning and 68.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 13:56:54,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 98.6MB. Free memory was 70.2MB in the beginning and 70.1MB in the end (delta: 78.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1365.50ms. Allocated memory is still 134.2MB. Free memory was 85.3MB in the beginning and 50.4MB in the end (delta: 35.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.03ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 50.4MB in the beginning and 124.2MB in the end (delta: -73.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.14ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.21ms. Allocated memory is still 161.5MB. Free memory was 122.1MB in the beginning and 106.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 738.21ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 69.7MB in the end (delta: 36.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 10.96ms. Allocated memory is still 161.5MB. Free memory was 69.7MB in the beginning and 68.6MB in the end (delta: 1.0MB). 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: 1876]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1841. 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); [L1853] 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) [L1853] RET printLine("Calling bad()...") VAL [\old(argc)=19, argc=19, argv={18:12}, argv={18:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1854] CALL CWE190_Integer_Overflow__int_fgets_square_54_bad() [L1835] int data; [L1836] data = 0 [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1839] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1841] data = atoi(inputBuffer) [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] CALL CWE190_Integer_Overflow__int_fgets_square_54b_badSink(data) [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_54c_badSink(data) [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_54d_badSink(data) [L1871] CALL CWE190_Integer_Overflow__int_fgets_square_54e_badSink(data) [L1876] data * data VAL [\old(data)=2147483647, data=2147483647, 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: 1876]: 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: 0.6s, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 13:56:54,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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 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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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 7daf704980f3efccd5e7e6d91c20fb9107bc3b22244b185cbf0dc27809790d15 --- 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 13:56:56,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:56:56,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:56:56,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:56:56,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:56:56,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:56:56,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:56:56,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:56:56,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:56:56,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:56:56,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:56:56,245 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:56:56,246 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:56:56,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:56:56,249 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:56:56,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:56:56,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:56:56,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:56:56,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:56:56,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:56:56,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:56:56,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:56:56,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:56:56,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:56:56,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:56:56,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:56:56,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:56:56,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:56:56,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:56:56,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:56:56,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:56:56,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:56:56,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:56:56,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:56:56,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:56:56,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:56:56,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:56:56,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:56:56,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:56:56,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:56:56,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:56:56,288 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 13:56:56,308 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:56:56,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:56:56,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:56:56,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:56:56,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:56:56,310 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:56:56,310 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:56:56,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:56:56,311 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 13:56:56,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:56:56,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:56:56,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:56:56,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:56:56,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:56:56,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:56:56,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:56:56,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:56:56,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 13:56:56,314 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_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7daf704980f3efccd5e7e6d91c20fb9107bc3b22244b185cbf0dc27809790d15 [2022-12-14 13:56:56,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:56:56,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:56:56,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:56:56,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:56:56,577 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:56:56,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:56:59,118 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:56:59,372 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:56:59,373 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:56:59,404 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/af6cf3a45/28f1959aae554cf8a587fc16327a80b4/FLAGc78cc5e6c [2022-12-14 13:56:59,416 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/data/af6cf3a45/28f1959aae554cf8a587fc16327a80b4 [2022-12-14 13:56:59,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:56:59,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:56:59,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:56:59,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:56:59,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:56:59,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:59" (1/1) ... [2022-12-14 13:56:59,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6819d1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:56:59, skipping insertion in model container [2022-12-14 13:56:59,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:56:59" (1/1) ... [2022-12-14 13:56:59,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:56:59,498 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:56:59,837 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:57:00,240 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:57:00,244 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:57:00,245 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:57:00,246 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:57:00,247 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:57:00,553 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:57:00,556 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:57:00,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:00,571 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:57:00,588 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 13:57:00,642 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 13:57:00,644 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:57:00,645 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 13:57:00,648 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:57:00,649 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 13:57:00,662 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 13:57:00,664 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 13:57:00,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:57:00,919 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:57:00,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00 WrapperNode [2022-12-14 13:57:00,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:57:00,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:00,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:57:00,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:57:00,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,961 INFO L138 Inliner]: procedures = 947, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2022-12-14 13:57:00,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:57:00,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:57:00,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:57:00,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:57:00,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,979 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:57:00,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:57:00,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:57:00,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:57:00,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (1/1) ... [2022-12-14 13:57:00,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:57:00,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:57:01,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:57:01,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:57:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:57:01,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:57:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 13:57:01,041 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 13:57:01,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:57:01,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 13:57:01,151 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:57:01,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:57:03,449 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:57:03,454 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:57:03,455 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 13:57:03,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:03 BoogieIcfgContainer [2022-12-14 13:57:03,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:57:03,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:57:03,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:57:03,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:57:03,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:56:59" (1/3) ... [2022-12-14 13:57:03,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161b2c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:03, skipping insertion in model container [2022-12-14 13:57:03,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:57:00" (2/3) ... [2022-12-14 13:57:03,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161b2c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:57:03, skipping insertion in model container [2022-12-14 13:57:03,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:57:03" (3/3) ... [2022-12-14 13:57:03,464 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_54_bad.i [2022-12-14 13:57:03,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:57:03,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 13:57:03,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:57:03,528 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;@c18d229, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:57:03,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 13:57:03,532 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 13:57:03,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 13:57:03,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:57:03,540 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:57:03,540 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 13:57:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:57:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-12-14 13:57:03,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 13:57:03,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1003870905] [2022-12-14 13:57:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:57:03,558 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 13:57:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 13:57:03,560 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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 13:57:03,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae41f16f-c328-40b6-b009-fefce9a1b7e4/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 13:57:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 13:57:03,683 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.