./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- 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 09:04:04,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:04:04,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:04:04,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:04:04,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:04:04,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:04:04,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:04:04,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:04:04,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:04:04,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:04:04,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:04:04,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:04:04,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:04:04,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:04:04,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:04:04,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:04:04,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:04:04,988 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:04:04,990 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:04:04,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:04:04,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:04:04,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:04:04,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:04:04,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:04:05,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:04:05,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:04:05,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:04:05,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:04:05,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:04:05,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:04:05,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:04:05,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:04:05,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:04:05,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:04:05,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:04:05,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:04:05,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:04:05,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:04:05,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:04:05,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:04:05,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:04:05,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 09:04:05,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:04:05,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:04:05,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:04:05,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:04:05,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:04:05,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:04:05,034 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:04:05,034 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:04:05,034 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:04:05,034 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:04:05,034 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:04:05,034 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:04:05,035 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:04:05,035 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:04:05,035 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:04:05,035 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:04:05,036 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:04:05,036 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:04:05,036 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:04:05,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:04:05,038 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:04:05,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:04:05,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:04:05,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:04:05,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:04:05,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:04:05,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:05,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:04:05,039 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:04:05,039 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:04:05,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:04:05,040 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:04:05,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:04:05,040 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:04:05,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:04:05,040 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_493080c0-5c3c-4e9e-a3ff-f740993b7346/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2022-12-14 09:04:05,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:04:05,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:04:05,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:04:05,249 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:04:05,249 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:04:05,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:07,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:04:08,053 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:04:08,053 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:08,066 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/441581864/30e9a2e9e55d4d858c531af4513d8937/FLAG08bb9b136 [2022-12-14 09:04:08,077 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/441581864/30e9a2e9e55d4d858c531af4513d8937 [2022-12-14 09:04:08,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:04:08,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:04:08,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:08,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:04:08,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:04:08,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b20a2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08, skipping insertion in model container [2022-12-14 09:04:08,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:04:08,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:04:08,371 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:04:08,639 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:04:08,644 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:08,645 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:08,647 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:08,648 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:08,665 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:04:08,669 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:04:08,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:08,678 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:04:08,692 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:04:08,724 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:04:08,725 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:08,726 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:08,727 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:08,728 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:08,731 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:04:08,733 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:04:08,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:08,839 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:04:08,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08 WrapperNode [2022-12-14 09:04:08,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:08,841 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:08,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:04:08,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:04:08,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,879 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-14 09:04:08,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:08,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:04:08,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:04:08,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:04:08,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,899 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:04:08,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:04:08,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:04:08,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:04:08,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (1/1) ... [2022-12-14 09:04:08,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:08,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:04:08,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:04:08,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:04:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 09:04:08,957 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:04:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:04:08,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:04:08,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:04:09,078 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:04:09,081 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:04:09,191 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:04:09,223 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:04:09,224 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:04:09,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09 BoogieIcfgContainer [2022-12-14 09:04:09,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:04:09,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:04:09,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:04:09,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:04:09,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:04:08" (1/3) ... [2022-12-14 09:04:09,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55434e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:09, skipping insertion in model container [2022-12-14 09:04:09,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:08" (2/3) ... [2022-12-14 09:04:09,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55434e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:09, skipping insertion in model container [2022-12-14 09:04:09,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09" (3/3) ... [2022-12-14 09:04:09,237 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:09,258 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:04:09,258 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:04:09,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:09,304 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;@6113344f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:09,304 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:04:09,307 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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 09:04:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:04:09,313 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:09,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:09,314 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:04:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:09,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1747669820, now seen corresponding path program 1 times [2022-12-14 09:04:09,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:09,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372274855] [2022-12-14 09:04:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:09,506 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 09:04:09,506 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:09,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372274855] [2022-12-14 09:04:09,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372274855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:09,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:09,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:09,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084402305] [2022-12-14 09:04:09,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:09,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:04:09,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:04:09,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:09,549 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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, 2 states have (on average 3.0) 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 09:04:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:09,581 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-14 09:04:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:04:09,584 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) 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 09:04:09,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:09,591 INFO L225 Difference]: With dead ends: 29 [2022-12-14 09:04:09,591 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 09:04:09,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 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 09:04:09,599 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:09,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 09:04:09,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 09:04:09,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 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 09:04:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 09:04:09,633 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-12-14 09:04:09,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:09,634 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 09:04:09,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) 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 09:04:09,635 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 09:04:09,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 09:04:09,636 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:09,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:09,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:04:09,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:04:09,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:09,638 INFO L85 PathProgramCache]: Analyzing trace with hash -220529636, now seen corresponding path program 1 times [2022-12-14 09:04:09,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:09,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46979786] [2022-12-14 09:04:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:09,775 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 09:04:09,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:04:09,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46979786] [2022-12-14 09:04:09,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46979786] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:09,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:09,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 09:04:09,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033163936] [2022-12-14 09:04:09,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:09,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:04:09,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:04:09,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:04:09,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:09,780 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 09:04:09,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:09,795 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-12-14 09:04:09,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:04:09,796 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 10 [2022-12-14 09:04:09,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:09,796 INFO L225 Difference]: With dead ends: 14 [2022-12-14 09:04:09,796 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 09:04:09,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:04:09,798 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:04:09,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:09,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 09:04:09,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 09:04:09,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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 09:04:09,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 09:04:09,803 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-12-14 09:04:09,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:09,804 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 09:04:09,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 09:04:09,804 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 09:04:09,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:04:09,805 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:09,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:09,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:04:09,806 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:04:09,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:09,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1753515950, now seen corresponding path program 1 times [2022-12-14 09:04:09,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:04:09,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877883524] [2022-12-14 09:04:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:04:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:09,834 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:09,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:09,869 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:04:09,869 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:09,870 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:04:09,872 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:04:09,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:04:09,876 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 09:04:09,880 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:04:09,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:04:09 BoogieIcfgContainer [2022-12-14 09:04:09,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:04:09,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:04:09,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:04:09,903 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:04:09,903 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:09" (3/4) ... [2022-12-14 09:04:09,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:04:09,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:04:09,907 INFO L158 Benchmark]: Toolchain (without parser) took 1826.42ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 113.2MB in the beginning and 125.3MB in the end (delta: -12.1MB). Peak memory consumption was 50.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,907 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:09,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 758.89ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 113.2MB in the beginning and 186.1MB in the end (delta: -72.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.94ms. Allocated memory is still 220.2MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,909 INFO L158 Benchmark]: Boogie Preprocessor took 21.08ms. Allocated memory is still 220.2MB. Free memory was 184.0MB in the beginning and 181.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,909 INFO L158 Benchmark]: RCFGBuilder took 324.99ms. Allocated memory is still 220.2MB. Free memory was 181.9MB in the beginning and 167.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,909 INFO L158 Benchmark]: TraceAbstraction took 672.28ms. Allocated memory is still 220.2MB. Free memory was 166.2MB in the beginning and 126.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-14 09:04:09,910 INFO L158 Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 220.2MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:09,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 758.89ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 113.2MB in the beginning and 186.1MB in the end (delta: -72.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.94ms. Allocated memory is still 220.2MB. Free memory was 186.1MB in the beginning and 184.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.08ms. Allocated memory is still 220.2MB. Free memory was 184.0MB in the beginning and 181.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 324.99ms. Allocated memory is still 220.2MB. Free memory was 181.9MB in the beginning and 167.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 672.28ms. Allocated memory is still 220.2MB. Free memory was 166.2MB in the beginning and 126.3MB in the end (delta: 39.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.69ms. Allocated memory is still 220.2MB. Free memory is still 125.3MB. 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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); [L1580] 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1567] COND TRUE 1 VAL [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] [L1570] ++data VAL [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: 1570]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 26 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 09:04:09,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 --- 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 09:04:11,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:04:11,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:04:11,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:04:11,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:04:11,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:04:11,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:04:11,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:04:11,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:04:11,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:04:11,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:04:11,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:04:11,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:04:11,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:04:11,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:04:11,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:04:11,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:04:11,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:04:11,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:04:11,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:04:11,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:04:11,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:04:11,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:04:11,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:04:11,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:04:11,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:04:11,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:04:11,555 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:04:11,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:04:11,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:04:11,557 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:04:11,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:04:11,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:04:11,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:04:11,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:04:11,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:04:11,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:04:11,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:04:11,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:04:11,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:04:11,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:04:11,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 09:04:11,592 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:04:11,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:04:11,593 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:04:11,593 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:04:11,593 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:04:11,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:04:11,594 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:04:11,594 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:04:11,594 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:04:11,594 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:04:11,595 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:04:11,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:04:11,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:04:11,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:04:11,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:04:11,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:04:11,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:04:11,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:04:11,597 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:04:11,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:04:11,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:04:11,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:04:11,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:04:11,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:11,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:04:11,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:04:11,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:04:11,599 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:04:11,599 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:04:11,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:04:11,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:04:11,600 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:04:11,600 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_493080c0-5c3c-4e9e-a3ff-f740993b7346/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcf67f55cb2b936645498ad1e66c69b81856b13ff1c5e99aa92d154892c2e5a4 [2022-12-14 09:04:11,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:04:11,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:04:11,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:04:11,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:04:11,827 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:04:11,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:14,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:04:14,584 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:04:14,584 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:14,597 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/817b57ca5/c538e124b8eb41f4817a56c2e530cacc/FLAG08781c6c9 [2022-12-14 09:04:14,902 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/data/817b57ca5/c538e124b8eb41f4817a56c2e530cacc [2022-12-14 09:04:14,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:04:14,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:04:14,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:14,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:04:14,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:04:14,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:14" (1/1) ... [2022-12-14 09:04:14,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7bf5c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:14, skipping insertion in model container [2022-12-14 09:04:14,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:04:14" (1/1) ... [2022-12-14 09:04:14,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:04:14,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:04:15,215 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:04:15,554 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:04:15,558 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:15,560 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:15,562 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:15,563 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:15,581 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:04:15,587 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:04:15,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:15,600 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:04:15,617 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:04:15,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:04:15,672 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:15,673 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:04:15,675 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:15,676 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:04:15,680 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:04:15,682 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:04:15,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:04:15,763 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:04:15,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15 WrapperNode [2022-12-14 09:04:15,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:04:15,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:15,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:04:15,765 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:04:15,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,812 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2022-12-14 09:04:15,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:04:15,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:04:15,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:04:15,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:04:15,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,837 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:04:15,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:04:15,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:04:15,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:04:15,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (1/1) ... [2022-12-14 09:04:15,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:04:15,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:04:15,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:04:15,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:04:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:04:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:04:15,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:04:15,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 09:04:16,009 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:04:16,011 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:04:16,119 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:04:16,123 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:04:16,123 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 09:04:16,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:16 BoogieIcfgContainer [2022-12-14 09:04:16,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:04:16,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:04:16,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:04:16,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:04:16,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:04:14" (1/3) ... [2022-12-14 09:04:16,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad6eb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:16, skipping insertion in model container [2022-12-14 09:04:16,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:04:15" (2/3) ... [2022-12-14 09:04:16,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad6eb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:04:16, skipping insertion in model container [2022-12-14 09:04:16,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:16" (3/3) ... [2022-12-14 09:04:16,130 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_16_bad.i [2022-12-14 09:04:16,143 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:04:16,144 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:04:16,174 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:04:16,178 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;@7d5f7ea2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:04:16,178 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:04:16,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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 09:04:16,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:04:16,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:16,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:16,187 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:04:16,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:16,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1450936690, now seen corresponding path program 1 times [2022-12-14 09:04:16,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:04:16,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [574618842] [2022-12-14 09:04:16,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:16,200 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 09:04:16,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:04:16,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:04:16,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:04:16,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:04:16,324 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 09:04:16,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:04:16,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:04:16,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [574618842] [2022-12-14 09:04:16,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [574618842] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:04:16,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:04:16,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:04:16,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370860045] [2022-12-14 09:04:16,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:04:16,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:04:16,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:04:16,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:04:16,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:04:16,364 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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 09:04:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:04:16,377 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2022-12-14 09:04:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:04:16,379 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 09:04:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:04:16,385 INFO L225 Difference]: With dead ends: 39 [2022-12-14 09:04:16,385 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 09:04:16,386 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 09:04:16,389 INFO L413 NwaCegarLoop]: 26 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, 26 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 09:04:16,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:04:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 09:04:16,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 09:04:16,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:04:16,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 09:04:16,413 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2022-12-14 09:04:16,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:04:16,414 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 09:04:16,415 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 09:04:16,415 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 09:04:16,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 09:04:16,415 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:04:16,415 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:04:16,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,618 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:04:16,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:04:16,621 INFO L85 PathProgramCache]: Analyzing trace with hash 346229105, now seen corresponding path program 1 times [2022-12-14 09:04:16,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:04:16,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694660838] [2022-12-14 09:04:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:04:16,626 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 09:04:16,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:04:16,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:16,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:16,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:04:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:04:16,824 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 09:04:16,824 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:04:16,825 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:04:16,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:04:16,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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)] Forceful destruction successful, exit code 0 [2022-12-14 09:04:17,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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 09:04:17,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:04:17,047 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:04:17,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:04:17 BoogieIcfgContainer [2022-12-14 09:04:17,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:04:17,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:04:17,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:04:17,096 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:04:17,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:04:16" (3/4) ... [2022-12-14 09:04:17,099 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:04:17,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:04:17,100 INFO L158 Benchmark]: Toolchain (without parser) took 2194.42ms. Allocated memory is still 77.6MB. Free memory was 52.7MB in the beginning and 34.3MB in the end (delta: 18.4MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,100 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:17,101 INFO L158 Benchmark]: CACSL2BoogieTranslator took 857.97ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 42.9MB in the end (delta: 9.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,101 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.94ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 39.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,102 INFO L158 Benchmark]: Boogie Preprocessor took 28.73ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,102 INFO L158 Benchmark]: RCFGBuilder took 282.46ms. Allocated memory is still 77.6MB. Free memory was 37.7MB in the beginning and 43.0MB in the end (delta: -5.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,103 INFO L158 Benchmark]: TraceAbstraction took 968.48ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 34.8MB in the end (delta: 7.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-12-14 09:04:17,103 INFO L158 Benchmark]: Witness Printer took 3.94ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 34.3MB in the end (delta: 435.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:04:17,105 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 41.4MB in the end (delta: 81.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 857.97ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 42.9MB in the end (delta: 9.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.94ms. Allocated memory is still 77.6MB. Free memory was 42.9MB in the beginning and 39.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.73ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 37.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.46ms. Allocated memory is still 77.6MB. Free memory was 37.7MB in the beginning and 43.0MB in the end (delta: -5.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 968.48ms. Allocated memory is still 77.6MB. Free memory was 42.6MB in the beginning and 34.8MB in the end (delta: 7.8MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 3.94ms. Allocated memory is still 77.6MB. Free memory was 34.8MB in the beginning and 34.3MB in the end (delta: 435.8kB). 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1580] 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) [L1580] 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_preinc_16_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1567] COND TRUE 1 VAL [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] [L1570] ++data VAL [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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 26 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, 26 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=24occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 47 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 09:04:17,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_493080c0-5c3c-4e9e-a3ff-f740993b7346/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