./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur --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 a066747f03e0fa4043b8e106b89336bb8f19b62c99a321004bd04fdc8b31baf6 --- 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-38b53e6 [2022-11-26 00:27:48,946 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:27:48,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:27:49,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:27:49,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:27:49,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:27:49,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:27:49,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:27:49,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:27:49,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:27:49,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:27:49,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:27:49,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:27:49,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:27:49,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:27:49,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:27:49,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:27:49,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:27:49,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:27:49,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:27:49,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:27:49,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:27:49,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:27:49,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:27:49,073 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:27:49,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:27:49,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:27:49,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:27:49,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:27:49,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:27:49,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:27:49,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:27:49,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:27:49,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:27:49,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:27:49,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:27:49,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:27:49,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:27:49,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:27:49,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:27:49,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:27:49,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:27:49,125 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:27:49,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:27:49,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:27:49,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:27:49,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:27:49,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:27:49,130 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:27:49,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:27:49,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:27:49,131 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:27:49,132 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:27:49,132 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:27:49,133 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:27:49,133 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:27:49,133 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:27:49,134 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:27:49,134 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:27:49,134 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:27:49,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:27:49,136 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:27:49,136 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:27:49,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:27:49,137 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:27:49,137 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:27:49,137 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:27:49,138 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:27:49,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:27:49,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:27:49,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:27:49,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:27:49,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:27:49,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:27:49,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:27:49,146 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:27:49,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:27:49,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:27:49,147 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:27:49,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:27:49,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:27:49,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:27:49,148 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_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a066747f03e0fa4043b8e106b89336bb8f19b62c99a321004bd04fdc8b31baf6 [2022-11-26 00:27:49,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:27:49,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:27:49,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:27:49,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:27:49,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:27:49,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:27:53,408 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:27:53,920 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:27:53,921 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:27:53,962 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/c9d2be687/0dc849ca954d44d9b037174bb73af328/FLAG35de3efaa [2022-11-26 00:27:53,985 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/c9d2be687/0dc849ca954d44d9b037174bb73af328 [2022-11-26 00:27:53,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:27:53,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:27:53,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:27:53,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:27:54,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:27:54,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:54,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5e829c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:54, skipping insertion in model container [2022-11-26 00:27:54,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:27:53" (1/1) ... [2022-11-26 00:27:54,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:27:54,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:27:54,701 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:27:55,588 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:27:55,600 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:27:55,604 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:27:55,616 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:27:55,618 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:27:56,170 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:27:56,173 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:27:56,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:27:56,194 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:27:56,216 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:27:56,262 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:27:56,264 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:27:56,265 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:27:56,268 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:27:56,268 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:27:56,283 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:27:56,285 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:27:56,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:27:56,605 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:27:56,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56 WrapperNode [2022-11-26 00:27:56,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:27:56,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:27:56,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:27:56,608 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:27:56,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,683 INFO L138 Inliner]: procedures = 941, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 57 [2022-11-26 00:27:56,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:27:56,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:27:56,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:27:56,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:27:56,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,713 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:27:56,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:27:56,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:27:56,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:27:56,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (1/1) ... [2022-11-26 00:27:56,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:27:56,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:56,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:27:56,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:27:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:27:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:27:56,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:27:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:27:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:27:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:27:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:27:56,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:27:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:27:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:27:56,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:27:57,025 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:27:57,041 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:27:57,342 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:27:57,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:27:57,397 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:27:57,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:57 BoogieIcfgContainer [2022-11-26 00:27:57,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:27:57,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:27:57,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:27:57,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:27:57,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:27:53" (1/3) ... [2022-11-26 00:27:57,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37592d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:27:57, skipping insertion in model container [2022-11-26 00:27:57,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:27:56" (2/3) ... [2022-11-26 00:27:57,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37592d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:27:57, skipping insertion in model container [2022-11-26 00:27:57,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:57" (3/3) ... [2022-11-26 00:27:57,414 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:27:57,438 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:27:57,438 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:27:57,511 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:27:57,521 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;@7140fa1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:27:57,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:27:57,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:27:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:27:57,567 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:57,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:57,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:27:57,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:57,580 INFO L85 PathProgramCache]: Analyzing trace with hash -2079372692, now seen corresponding path program 1 times [2022-11-26 00:27:57,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:57,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989923237] [2022-11-26 00:27:57,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:57,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:27:57,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:27:57,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:27:57,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989923237] [2022-11-26 00:27:57,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989923237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:27:57,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:27:57,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:27:57,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458654372] [2022-11-26 00:27:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:27:57,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:27:57,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:27:57,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:27:57,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:27:57,984 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:27:58,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:27:58,052 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-26 00:27:58,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:27:58,059 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-26 00:27:58,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:27:58,068 INFO L225 Difference]: With dead ends: 15 [2022-11-26 00:27:58,069 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 00:27:58,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:27:58,081 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:27:58,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:27:58,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 00:27:58,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-26 00:27:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:27:58,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-26 00:27:58,131 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-26 00:27:58,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:27:58,138 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-26 00:27:58,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-26 00:27:58,139 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-26 00:27:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:27:58,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:27:58,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:27:58,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:27:58,145 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:27:58,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:27:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash -36043958, now seen corresponding path program 1 times [2022-11-26 00:27:58,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:27:58,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76478034] [2022-11-26 00:27:58,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:58,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:27:58,226 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:27:58,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1838589925] [2022-11-26 00:27:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:27:58,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:27:58,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:27:58,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:27:58,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:27:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:27:58,460 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:27:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:27:58,548 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:27:58,549 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:27:58,551 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:27:58,554 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:27:58,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:27:58,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-26 00:27:58,767 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:27:58,772 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:27:58,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:27:58 BoogieIcfgContainer [2022-11-26 00:27:58,821 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:27:58,822 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:27:58,822 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:27:58,822 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:27:58,823 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:27:57" (3/4) ... [2022-11-26 00:27:58,827 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:27:58,828 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:27:58,829 INFO L158 Benchmark]: Toolchain (without parser) took 4837.96ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 147.8MB in the beginning and 153.6MB in the end (delta: -5.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-26 00:27:58,829 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:27:58,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2614.27ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 98.2MB in the end (delta: 49.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2022-11-26 00:27:58,831 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.66ms. Allocated memory is still 182.5MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:27:58,832 INFO L158 Benchmark]: Boogie Preprocessor took 33.36ms. Allocated memory is still 182.5MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:27:58,832 INFO L158 Benchmark]: RCFGBuilder took 681.74ms. Allocated memory is still 182.5MB. Free memory was 93.0MB in the beginning and 78.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:27:58,833 INFO L158 Benchmark]: TraceAbstraction took 1418.14ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 77.3MB in the beginning and 154.7MB in the end (delta: -77.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:27:58,834 INFO L158 Benchmark]: Witness Printer took 6.15ms. Allocated memory is still 220.2MB. Free memory was 154.7MB in the beginning and 153.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:27:58,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2614.27ms. Allocated memory is still 182.5MB. Free memory was 147.8MB in the beginning and 98.2MB in the end (delta: 49.5MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.66ms. Allocated memory is still 182.5MB. Free memory was 98.2MB in the beginning and 95.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.36ms. Allocated memory is still 182.5MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.74ms. Allocated memory is still 182.5MB. Free memory was 93.0MB in the beginning and 78.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1418.14ms. Allocated memory was 182.5MB in the beginning and 220.2MB in the end (delta: 37.7MB). Free memory was 77.3MB in the beginning and 154.7MB in the end (delta: -77.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.15ms. Allocated memory is still 220.2MB. Free memory was 154.7MB in the beginning and 153.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1871]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1841. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1853] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1853] RET printLine("Calling bad()...") VAL [\old(argc)=19, argc=19, argv={18:28}, argv={18:28}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1854] CALL CWE190_Integer_Overflow__int_fgets_square_53_bad() [L1835] int data; [L1836] data = 0 [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1839] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1841] data = atoi(inputBuffer) [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] CALL CWE190_Integer_Overflow__int_fgets_square_53b_badSink(data) [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_53c_badSink(data) [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_53d_badSink(data) [L1871] data * data VAL [\old(data)=178955942, data=178955942, 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: 1871]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:27:58,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur --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 a066747f03e0fa4043b8e106b89336bb8f19b62c99a321004bd04fdc8b31baf6 --- 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-38b53e6 [2022-11-26 00:28:01,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:01,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:01,825 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:01,826 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:01,827 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:01,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:01,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:01,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:01,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:01,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:01,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:01,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:01,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:01,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:01,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:01,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:01,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:01,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:01,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:01,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:01,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:01,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:01,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:01,860 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:01,860 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:01,861 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:01,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:01,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:01,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:01,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:01,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:01,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:01,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:01,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:01,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:01,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:01,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:01,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:01,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:01,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:01,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:28:01,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:01,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:01,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:01,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:01,907 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:01,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:01,908 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:01,908 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:01,909 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:01,909 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:01,909 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:01,910 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:01,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:01,911 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:01,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:01,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:01,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:01,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:01,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:28:01,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:28:01,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:28:01,914 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:28:01,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:01,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:01,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:01,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:01,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:28:01,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:01,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:01,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:01,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:01,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:01,918 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:28:01,918 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:28:01,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:01,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:01,919 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:28:01,919 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_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a066747f03e0fa4043b8e106b89336bb8f19b62c99a321004bd04fdc8b31baf6 [2022-11-26 00:28:02,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:02,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:02,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:02,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:02,398 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:02,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:28:05,915 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:06,502 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:06,503 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:28:06,538 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/b121619cd/3a325ded61d146be8cc3c49174078e7a/FLAGdfeabe7dd [2022-11-26 00:28:06,568 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/data/b121619cd/3a325ded61d146be8cc3c49174078e7a [2022-11-26 00:28:06,577 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:06,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:06,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:06,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:06,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:06,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2007174b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:06, skipping insertion in model container [2022-11-26 00:28:06,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:06" (1/1) ... [2022-11-26 00:28:06,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:06,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:07,465 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:08,520 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:08,527 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:08,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:08,541 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:08,542 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:09,056 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:09,060 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:09,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:09,084 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:09,104 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:09,210 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:09,224 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:09,226 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:09,228 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:09,229 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:09,241 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:09,256 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:09,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:09,727 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:09,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09 WrapperNode [2022-11-26 00:28:09,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:09,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:09,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:09,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:09,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,833 INFO L138 Inliner]: procedures = 946, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 56 [2022-11-26 00:28:09,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:09,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:09,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:09,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:09,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,866 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:09,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:09,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:09,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:09,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (1/1) ... [2022-11-26 00:28:09,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:09,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:09,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:09,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:28:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 00:28:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:28:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:28:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:28:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:28:10,143 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:10,145 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:13,007 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:13,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:13,014 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:28:13,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:13 BoogieIcfgContainer [2022-11-26 00:28:13,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:13,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:13,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:13,024 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:13,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:06" (1/3) ... [2022-11-26 00:28:13,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ffade5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:13, skipping insertion in model container [2022-11-26 00:28:13,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:09" (2/3) ... [2022-11-26 00:28:13,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ffade5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:13, skipping insertion in model container [2022-11-26 00:28:13,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:13" (3/3) ... [2022-11-26 00:28:13,028 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_53_bad.i [2022-11-26 00:28:13,050 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:13,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:28:13,105 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:13,113 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;@32a263d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:13,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:28:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:28:13,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:28:13,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:13,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:13,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:28:13,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:13,135 INFO L85 PathProgramCache]: Analyzing trace with hash 290656206, now seen corresponding path program 1 times [2022-11-26 00:28:13,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:28:13,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403365800] [2022-11-26 00:28:13,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:13,152 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 [2022-11-26 00:28:13,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:28:13,163 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:28:13,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:28:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:13,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:28:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:13,564 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:28:13,566 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:28:13,568 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:28:13,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:28:13,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:28:13,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:28:13,786 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:28:13,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:28:13,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:28:13 BoogieIcfgContainer [2022-11-26 00:28:13,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:28:13,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:28:13,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:28:13,828 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:28:13,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:13" (3/4) ... [2022-11-26 00:28:13,833 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:28:13,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:28:13,834 INFO L158 Benchmark]: Toolchain (without parser) took 7255.40ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 46.5MB in the beginning and 55.9MB in the end (delta: -9.4MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,835 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:13,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3143.37ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 46.2MB in the beginning and 38.7MB in the end (delta: 7.5MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.41ms. Allocated memory is still 92.3MB. Free memory was 38.7MB in the beginning and 60.8MB in the end (delta: -22.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,837 INFO L158 Benchmark]: Boogie Preprocessor took 37.29ms. Allocated memory is still 92.3MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,838 INFO L158 Benchmark]: RCFGBuilder took 3144.00ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 44.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,839 INFO L158 Benchmark]: TraceAbstraction took 807.41ms. Allocated memory is still 92.3MB. Free memory was 43.2MB in the beginning and 56.5MB in the end (delta: -13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,839 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 55.9MB in the end (delta: 602.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:13,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 73.4MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3143.37ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 46.2MB in the beginning and 38.7MB in the end (delta: 7.5MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.41ms. Allocated memory is still 92.3MB. Free memory was 38.7MB in the beginning and 60.8MB in the end (delta: -22.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.29ms. Allocated memory is still 92.3MB. Free memory was 60.8MB in the beginning and 58.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3144.00ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 44.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 807.41ms. Allocated memory is still 92.3MB. Free memory was 43.2MB in the beginning and 56.5MB in the end (delta: -13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 92.3MB. Free memory was 56.5MB in the beginning and 55.9MB in the end (delta: 602.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1871]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1841. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1853] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1853] RET printLine("Calling bad()...") VAL [\old(argc)=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] [L1854] CALL CWE190_Integer_Overflow__int_fgets_square_53_bad() [L1835] int data; [L1836] data = 0 [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1839] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1841] data = atoi(inputBuffer) [L1838] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] CALL CWE190_Integer_Overflow__int_fgets_square_53b_badSink(data) [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_53c_badSink(data) [L1866] CALL CWE190_Integer_Overflow__int_fgets_square_53d_badSink(data) [L1871] data * data VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1871]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:28:13,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07b1bea1-c603-44e1-b532-f7bc603eacc5/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample