./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 bb584eace91f708c9fb258b07d507c0a924e97c536b21d9ed6e9b1c7216f7aaa --- 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 01:03:56,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:03:56,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:03:56,747 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:03:56,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:03:56,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:03:56,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:03:56,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:03:56,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:03:56,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:03:56,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:03:56,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:03:56,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:03:56,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:03:56,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:03:56,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:03:56,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:03:56,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:03:56,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:03:56,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:03:56,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:03:56,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:03:56,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:03:56,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:03:56,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:03:56,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:03:56,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:03:56,803 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:03:56,803 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:03:56,804 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:03:56,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:03:56,805 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:03:56,806 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:03:56,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:03:56,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:03:56,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:03:56,808 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:03:56,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:03:56,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:03:56,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:03:56,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:03:56,815 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:03:56,854 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:03:56,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:03:56,855 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:03:56,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:03:56,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:03:56,857 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:03:56,857 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:03:56,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:03:56,857 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:03:56,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:03:56,858 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:03:56,858 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:03:56,859 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:03:56,859 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:03:56,859 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:03:56,859 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:03:56,859 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:03:56,860 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:03:56,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:03:56,861 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:03:56,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:03:56,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:03:56,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:03:56,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:03:56,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:03:56,862 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:03:56,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:03:56,863 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:03:56,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:03:56,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:03:56,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:03:56,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:56,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:03:56,864 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:03:56,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:03:56,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:03:56,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:03:56,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:03:56,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:03:56,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:03:56,865 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_9197f23a-f410-46da-bf1c-5ae5481f8e15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb584eace91f708c9fb258b07d507c0a924e97c536b21d9ed6e9b1c7216f7aaa [2022-11-26 01:03:57,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:03:57,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:03:57,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:03:57,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:03:57,187 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:03:57,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:00,258 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:04:00,675 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:04:00,677 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:00,714 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/bfd41cd4d/60727d23f83a44d8805a5b38593d7aaa/FLAGfe47e1075 [2022-11-26 01:04:00,729 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/bfd41cd4d/60727d23f83a44d8805a5b38593d7aaa [2022-11-26 01:04:00,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:04:00,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:04:00,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:00,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:04:00,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:04:00,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:00" (1/1) ... [2022-11-26 01:04:00,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ee97916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:00, skipping insertion in model container [2022-11-26 01:04:00,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:00" (1/1) ... [2022-11-26 01:04:00,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:04:00,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:04:01,232 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:04:01,773 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:04:01,779 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:01,781 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:01,784 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:01,784 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:02,294 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:04:02,301 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:04:02,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:02,313 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:04:02,349 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:04:02,429 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:04:02,431 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:02,432 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:02,434 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:02,435 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:02,451 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:04:02,455 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:04:02,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:02,715 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:04:02,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02 WrapperNode [2022-11-26 01:04:02,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:02,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:02,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:04:02,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:04:02,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,785 INFO L138 Inliner]: procedures = 939, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-11-26 01:04:02,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:02,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:04:02,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:04:02,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:04:02,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,811 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:04:02,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:04:02,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:04:02,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:04:02,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (1/1) ... [2022-11-26 01:04:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:02,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:02,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:04:02,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:04:02,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:04:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:04:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:04:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:04:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:04:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:04:02,896 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:04:02,896 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:04:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:04:02,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:04:02,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:04:03,112 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:04:03,114 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:03,301 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:03,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:03,371 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:04:03,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:03 BoogieIcfgContainer [2022-11-26 01:04:03,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:03,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:03,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:03,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:03,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:04:00" (1/3) ... [2022-11-26 01:04:03,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43da201e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:03, skipping insertion in model container [2022-11-26 01:04:03,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:02" (2/3) ... [2022-11-26 01:04:03,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43da201e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:03, skipping insertion in model container [2022-11-26 01:04:03,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:03" (3/3) ... [2022-11-26 01:04:03,387 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:03,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:03,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:04:03,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:03,479 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;@64b5f7a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:03,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:04:03,485 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 01:04:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:04:03,497 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:03,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:03,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:04:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:03,506 INFO L85 PathProgramCache]: Analyzing trace with hash 108804888, now seen corresponding path program 1 times [2022-11-26 01:04:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:03,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610283648] [2022-11-26 01:04:03,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:03,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:03,829 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 01:04:03,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:03,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610283648] [2022-11-26 01:04:03,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610283648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:03,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:03,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:04:03,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948982288] [2022-11-26 01:04:03,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:03,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 01:04:03,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:03,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 01:04:03,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:04:03,906 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 01:04:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:04:03,939 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-26 01:04:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 01:04:03,948 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 01:04:03,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:04:03,954 INFO L225 Difference]: With dead ends: 15 [2022-11-26 01:04:03,955 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 01:04:03,959 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 01:04:03,965 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:04:03,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:04:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 01:04:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-26 01:04:04,002 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 01:04:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-26 01:04:04,005 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-26 01:04:04,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:04:04,007 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-26 01:04:04,007 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 01:04:04,009 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-26 01:04:04,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:04:04,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:04,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:04,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:04:04,012 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:04:04,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:04,013 INFO L85 PathProgramCache]: Analyzing trace with hash -922015712, now seen corresponding path program 1 times [2022-11-26 01:04:04,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:04,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912214525] [2022-11-26 01:04:04,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:04,079 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 01:04:04,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427460335] [2022-11-26 01:04:04,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:04,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:04:04,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:04,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:04:04,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:04:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:04,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:04:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:04,310 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:04:04,311 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:04:04,313 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:04:04,319 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:04:04,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:04:04,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:04:04,529 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:04:04,533 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:04:04,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:04:04 BoogieIcfgContainer [2022-11-26 01:04:04,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:04:04,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:04:04,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:04:04,582 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:04:04,583 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:03" (3/4) ... [2022-11-26 01:04:04,586 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:04:04,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:04:04,587 INFO L158 Benchmark]: Toolchain (without parser) took 3854.28ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 122.6MB in the beginning and 129.3MB in the end (delta: -6.7MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-26 01:04:04,588 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:04,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1981.93ms. Allocated memory is still 151.0MB. Free memory was 122.3MB in the beginning and 90.5MB in the end (delta: 31.8MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2022-11-26 01:04:04,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.98ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 87.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:04:04,589 INFO L158 Benchmark]: Boogie Preprocessor took 28.76ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 85.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:04,590 INFO L158 Benchmark]: RCFGBuilder took 558.72ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 70.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:04:04,590 INFO L158 Benchmark]: TraceAbstraction took 1200.91ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 69.5MB in the beginning and 130.3MB in the end (delta: -60.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:04,591 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 186.6MB. Free memory was 130.3MB in the beginning and 129.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:04:04,593 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1981.93ms. Allocated memory is still 151.0MB. Free memory was 122.3MB in the beginning and 90.5MB in the end (delta: 31.8MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.98ms. Allocated memory is still 151.0MB. Free memory was 90.5MB in the beginning and 87.1MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.76ms. Allocated memory is still 151.0MB. Free memory was 87.1MB in the beginning and 85.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 558.72ms. Allocated memory is still 151.0MB. Free memory was 85.1MB in the beginning and 70.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1200.91ms. Allocated memory was 151.0MB in the beginning and 186.6MB in the end (delta: 35.7MB). Free memory was 69.5MB in the beginning and 130.3MB in the end (delta: -60.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 186.6MB. Free memory was 130.3MB in the beginning and 129.3MB in the end (delta: 1.1MB). 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1838. 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); [L1860] 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) [L1860] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={28:27}, argv={28:27}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_42_bad() [L1849] int data; [L1850] data = 0 [L1851] CALL, EXPR badSource(data) [L1835] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1836] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1838] data = atoi(inputBuffer) [L1835] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1845] return data; [L1851] RET, EXPR badSource(data) [L1851] data = badSource(data) [L1853] data * data VAL [data=536870912, 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: 1853]: 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: 1.1s, 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, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s 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 01:04:04,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 bb584eace91f708c9fb258b07d507c0a924e97c536b21d9ed6e9b1c7216f7aaa --- 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 01:04:07,092 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:04:07,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:04:07,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:04:07,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:04:07,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:04:07,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:04:07,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:04:07,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:04:07,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:04:07,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:04:07,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:04:07,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:04:07,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:04:07,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:04:07,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:04:07,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:04:07,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:04:07,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:04:07,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:04:07,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:04:07,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:04:07,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:04:07,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:04:07,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:04:07,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:04:07,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:04:07,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:04:07,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:04:07,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:04:07,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:04:07,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:04:07,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:04:07,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:04:07,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:04:07,206 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:04:07,207 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:04:07,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:04:07,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:04:07,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:04:07,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:04:07,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:04:07,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:04:07,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:04:07,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:04:07,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:04:07,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:04:07,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:04:07,262 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:04:07,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:04:07,262 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:04:07,262 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:04:07,263 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:04:07,264 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:04:07,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:04:07,265 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:04:07,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:04:07,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:04:07,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:04:07,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:04:07,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:04:07,266 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:04:07,266 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:04:07,266 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:04:07,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:04:07,267 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:04:07,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:04:07,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:04:07,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:04:07,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:04:07,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:07,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:04:07,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:04:07,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:04:07,269 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:04:07,270 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:04:07,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:04:07,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:04:07,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:04:07,271 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_9197f23a-f410-46da-bf1c-5ae5481f8e15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb584eace91f708c9fb258b07d507c0a924e97c536b21d9ed6e9b1c7216f7aaa [2022-11-26 01:04:07,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:04:07,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:04:07,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:04:07,698 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:04:07,698 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:04:07,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:10,895 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:04:11,379 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:04:11,381 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:11,406 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/1d3d998cf/fe76e5cdb3974cd692cfbf19b229519b/FLAGcbe001bbb [2022-11-26 01:04:11,425 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/data/1d3d998cf/fe76e5cdb3974cd692cfbf19b229519b [2022-11-26 01:04:11,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:04:11,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:04:11,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:11,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:04:11,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:04:11,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:11" (1/1) ... [2022-11-26 01:04:11,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb81bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:11, skipping insertion in model container [2022-11-26 01:04:11,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:11" (1/1) ... [2022-11-26 01:04:11,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:04:11,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:04:11,959 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:04:12,453 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:04:12,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:12,460 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:12,462 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:12,463 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:12,901 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:04:12,908 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:04:12,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:12,924 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:04:12,945 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:04:12,994 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:04:12,996 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:12,997 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:04:13,000 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:13,001 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:04:13,020 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:04:13,027 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:04:13,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:13,341 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:04:13,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13 WrapperNode [2022-11-26 01:04:13,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:13,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:13,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:04:13,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:04:13,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,419 INFO L138 Inliner]: procedures = 944, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-26 01:04:13,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:13,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:04:13,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:04:13,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:04:13,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,450 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:04:13,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:04:13,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:04:13,457 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:04:13,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (1/1) ... [2022-11-26 01:04:13,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:13,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:04:13,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:04:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:04:13,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:04:13,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:04:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:04:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:04:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 01:04:13,537 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:04:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:04:13,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:04:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:04:13,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:04:13,717 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:04:13,719 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:14,741 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:14,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:14,757 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:04:14,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:14 BoogieIcfgContainer [2022-11-26 01:04:14,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:14,762 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:14,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:14,765 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:14,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:04:11" (1/3) ... [2022-11-26 01:04:14,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b1ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:14, skipping insertion in model container [2022-11-26 01:04:14,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:13" (2/3) ... [2022-11-26 01:04:14,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76b1ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:14, skipping insertion in model container [2022-11-26 01:04:14,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:14" (3/3) ... [2022-11-26 01:04:14,768 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_42_bad.i [2022-11-26 01:04:14,788 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:14,788 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:04:14,836 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:14,842 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;@44a085b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:14,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:04:14,846 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 01:04:14,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 01:04:14,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:14,853 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:14,853 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:04:14,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:14,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-26 01:04:14,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:04:14,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1777153199] [2022-11-26 01:04:14,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:14,871 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 01:04:14,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:04:14,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 01:04:14,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 01:04:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:15,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:04:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:15,214 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:04:15,216 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:04:15,218 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:04:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:04:15,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 01:04:15,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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 01:04:15,425 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:04:15,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:04:15,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:04:15 BoogieIcfgContainer [2022-11-26 01:04:15,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:04:15,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:04:15,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:04:15,464 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:04:15,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:14" (3/4) ... [2022-11-26 01:04:15,468 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:04:15,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:04:15,469 INFO L158 Benchmark]: Toolchain (without parser) took 4039.23ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 61.1MB in the beginning and 49.6MB in the end (delta: 11.4MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,469 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:15,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1910.63ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 48.8MB in the end (delta: 12.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,471 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.19ms. Allocated memory is still 100.7MB. Free memory was 48.8MB in the beginning and 44.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,471 INFO L158 Benchmark]: Boogie Preprocessor took 34.37ms. Allocated memory is still 100.7MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,472 INFO L158 Benchmark]: RCFGBuilder took 1303.30ms. Allocated memory is still 100.7MB. Free memory was 42.6MB in the beginning and 68.6MB in the end (delta: -26.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,472 INFO L158 Benchmark]: TraceAbstraction took 701.56ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 49.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 01:04:15,473 INFO L158 Benchmark]: Witness Printer took 4.17ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 49.6MB in the end (delta: 266.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:15,476 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 58.7MB. Free memory was 37.3MB in the beginning and 37.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1910.63ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.8MB in the beginning and 48.8MB in the end (delta: 12.0MB). Peak memory consumption was 37.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.19ms. Allocated memory is still 100.7MB. Free memory was 48.8MB in the beginning and 44.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.37ms. Allocated memory is still 100.7MB. Free memory was 44.7MB in the beginning and 42.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1303.30ms. Allocated memory is still 100.7MB. Free memory was 42.6MB in the beginning and 68.6MB in the end (delta: -26.0MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 701.56ms. Allocated memory is still 100.7MB. Free memory was 68.6MB in the beginning and 49.9MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.17ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 49.6MB in the end (delta: 266.8kB). 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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1838. 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] [L1860] 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) [L1860] 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] [L1861] CALL CWE190_Integer_Overflow__int_fgets_square_42_bad() [L1849] int data; [L1850] data = 0 [L1851] CALL, EXPR badSource(data) [L1835] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1836] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1838] data = atoi(inputBuffer) [L1835] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1845] return data; VAL [\old(data)=0, \result=-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] [L1851] RET, EXPR badSource(data) [L1851] data = badSource(data) [L1853] data * data VAL [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: 1853]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=23occurred 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, 12 NumberOfCodeBlocks, 12 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 01:04:15,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9197f23a-f410-46da-bf1c-5ae5481f8e15/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