./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 --- 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 [2022-11-25 23:51:44,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:51:44,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:51:44,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:51:44,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:51:44,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:51:44,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:51:44,614 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:51:44,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:51:44,620 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:51:44,622 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:51:44,624 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:51:44,624 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:51:44,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:51:44,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:51:44,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:51:44,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:51:44,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:51:44,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:51:44,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:51:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:51:44,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:51:44,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:51:44,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:51:44,660 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:51:44,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:51:44,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:51:44,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:51:44,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:51:44,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:51:44,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:51:44,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:51:44,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:51:44,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:51:44,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:51:44,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:51:44,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:51:44,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:51:44,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:51:44,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:51:44,673 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:51:44,674 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:51:44,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:51:44,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:51:44,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:51:44,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:51:44,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:51:44,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:51:44,703 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:51:44,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:51:44,703 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:51:44,704 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:51:44,705 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:51:44,705 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:51:44,705 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:51:44,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:51:44,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:51:44,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:51:44,706 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:51:44,707 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:51:44,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:51:44,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:51:44,708 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:51:44,708 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:44,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:51:44,709 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:51:44,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:51:44,710 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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 [2022-11-25 23:51:45,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:51:45,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:51:45,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:51:45,071 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:51:45,072 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:51:45,073 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:48,142 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:51:48,562 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:51:48,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:48,582 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/11f5d28cd/d928e0e66431469e937432c01ebdafc7/FLAGa83015ed8 [2022-11-25 23:51:48,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/11f5d28cd/d928e0e66431469e937432c01ebdafc7 [2022-11-25 23:51:48,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:51:48,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:51:48,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:48,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:51:48,609 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:51:48,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:48" (1/1) ... [2022-11-25 23:51:48,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b64c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:48, skipping insertion in model container [2022-11-25 23:51:48,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:48" (1/1) ... [2022-11-25 23:51:48,619 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:51:48,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:51:49,072 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:49,520 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:49,524 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:49,527 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:49,529 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:49,530 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:49,548 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:49,550 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:49,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:49,564 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:51:49,583 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:49,626 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:49,628 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:49,629 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:49,632 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:49,632 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:49,642 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:49,644 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:49,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:49,785 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:51:49,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49 WrapperNode [2022-11-25 23:51:49,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:49,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:49,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:51:49,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:51:49,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,879 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-11-25 23:51:49,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:49,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:51:49,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:51:49,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:51:49,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,919 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:51:49,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:51:49,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:51:49,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:51:49,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (1/1) ... [2022-11-25 23:51:49,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:49,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:49,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:51:49,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:51:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:51:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:51:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:51:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:51:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:51:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:51:50,161 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:51:50,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:51:50,339 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:51:50,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:51:50,384 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:51:50,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:50 BoogieIcfgContainer [2022-11-25 23:51:50,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:51:50,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:51:50,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:51:50,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:51:50,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:51:48" (1/3) ... [2022-11-25 23:51:50,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60695cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:50, skipping insertion in model container [2022-11-25 23:51:50,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:49" (2/3) ... [2022-11-25 23:51:50,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60695cc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:50, skipping insertion in model container [2022-11-25 23:51:50,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:50" (3/3) ... [2022-11-25 23:51:50,397 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:50,415 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:51:50,415 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:51:50,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:51:50,472 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;@23583bad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:51:50,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:51:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2022-11-25 23:51:50,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:51:50,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:50,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:50,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:51:50,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:50,492 INFO L85 PathProgramCache]: Analyzing trace with hash -39611802, now seen corresponding path program 1 times [2022-11-25 23:51:50,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:50,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002355862] [2022-11-25 23:51:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:50,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:50,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:50,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:51:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:50,776 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:51:50,778 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:51:50,779 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:51:50,782 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:51:50,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:51:50,787 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:51:50,792 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:51:50,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:51:50 BoogieIcfgContainer [2022-11-25 23:51:50,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:51:50,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:51:50,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:51:50,849 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:51:50,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:50" (3/4) ... [2022-11-25 23:51:50,854 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:51:50,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:51:50,855 INFO L158 Benchmark]: Toolchain (without parser) took 2254.99ms. Allocated memory is still 188.7MB. Free memory was 148.3MB in the beginning and 64.6MB in the end (delta: 83.7MB). Peak memory consumption was 81.0MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,856 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:51:50,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.62ms. Allocated memory is still 188.7MB. Free memory was 148.3MB in the beginning and 101.6MB in the end (delta: 46.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.52ms. Allocated memory is still 188.7MB. Free memory was 101.6MB in the beginning and 98.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,863 INFO L158 Benchmark]: Boogie Preprocessor took 58.74ms. Allocated memory is still 188.7MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,865 INFO L158 Benchmark]: RCFGBuilder took 447.93ms. Allocated memory is still 188.7MB. Free memory was 97.4MB in the beginning and 82.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,865 INFO L158 Benchmark]: TraceAbstraction took 456.18ms. Allocated memory is still 188.7MB. Free memory was 82.0MB in the beginning and 65.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:51:50,866 INFO L158 Benchmark]: Witness Printer took 5.86ms. Allocated memory is still 188.7MB. Free memory was 65.2MB in the beginning and 64.6MB in the end (delta: 587.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:51:50,869 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 123.7MB. Free memory is still 91.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.62ms. Allocated memory is still 188.7MB. Free memory was 148.3MB in the beginning and 101.6MB in the end (delta: 46.7MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.52ms. Allocated memory is still 188.7MB. Free memory was 101.6MB in the beginning and 98.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.74ms. Allocated memory is still 188.7MB. Free memory was 98.8MB in the beginning and 97.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.93ms. Allocated memory is still 188.7MB. Free memory was 97.4MB in the beginning and 82.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 456.18ms. Allocated memory is still 188.7MB. Free memory was 82.0MB in the beginning and 65.2MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.86ms. Allocated memory is still 188.7MB. Free memory was 65.2MB in the beginning and 64.6MB in the end (delta: 587.3kB). 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: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData; [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741830:1073741828}, argv={1073741830:1073741828}, CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1586] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-1073741825, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodG2BData=0, data=-1073741825, 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: 1586]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=17occurred 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, 9 NumberOfCodeBlocks, 9 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 [2022-11-25 23:51:50,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 --- 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 [2022-11-25 23:51:53,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:51:53,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:51:53,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:51:53,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:51:53,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:51:53,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:51:53,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:51:53,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:51:53,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:51:53,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:51:53,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:51:53,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:51:53,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:51:53,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:51:53,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:51:53,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:51:53,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:51:53,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:51:53,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:51:53,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:51:53,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:51:53,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:51:53,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:51:53,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:51:53,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:51:53,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:51:53,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:51:53,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:51:53,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:51:53,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:51:53,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:51:53,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:51:53,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:51:53,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:51:53,507 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:51:53,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:51:53,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:51:53,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:51:53,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:51:53,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:51:53,515 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:51:53,557 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:51:53,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:51:53,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:51:53,559 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:51:53,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:51:53,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:51:53,560 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:51:53,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:51:53,561 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:51:53,561 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:51:53,562 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:51:53,562 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:51:53,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:51:53,563 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:51:53,563 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:51:53,563 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:51:53,564 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:51:53,564 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:51:53,564 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:51:53,564 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:51:53,564 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:51:53,565 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:51:53,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:51:53,565 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:51:53,565 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:51:53,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:51:53,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:51:53,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:51:53,566 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:53,566 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:51:53,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:51:53,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:51:53,567 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:51:53,567 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:51:53,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:51:53,568 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:51:53,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:51:53,568 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_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84abbeab2c929e6ff1f3df3929c646a9a8cef266072a2d77da11e86bd9528e00 [2022-11-25 23:51:53,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:51:53,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:51:53,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:51:53,966 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:51:53,967 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:51:53,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:57,127 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:51:57,532 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:51:57,533 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:57,566 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/61fe1223d/59439774a42945f6a1610b402f140226/FLAGbb7a7cfea [2022-11-25 23:51:57,589 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/data/61fe1223d/59439774a42945f6a1610b402f140226 [2022-11-25 23:51:57,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:51:57,593 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:51:57,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:57,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:51:57,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:51:57,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:57" (1/1) ... [2022-11-25 23:51:57,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d2a00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:57, skipping insertion in model container [2022-11-25 23:51:57,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:51:57" (1/1) ... [2022-11-25 23:51:57,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:51:57,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:51:58,173 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:58,613 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:58,619 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:58,624 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:58,635 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:58,635 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:58,657 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:58,659 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:58,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:58,678 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:51:58,708 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:51:58,778 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:51:58,780 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:58,781 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:51:58,783 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:58,784 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:51:58,788 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:51:58,790 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:51:58,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:51:58,948 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:51:58,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58 WrapperNode [2022-11-25 23:51:58,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:51:58,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:58,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:51:58,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:51:58,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:58,993 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,032 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 23:51:59,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:59,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:51:59,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:51:59,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:51:59,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:51:59,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:51:59,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:51:59,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:51:59,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (1/1) ... [2022-11-25 23:51:59,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:59,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:59,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:51:59,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:51:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:51:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:51:59,181 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:51:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:51:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:51:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:51:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:51:59,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:51:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:51:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:51:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:51:59,346 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:51:59,348 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:51:59,497 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:51:59,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:51:59,503 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:51:59,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:59 BoogieIcfgContainer [2022-11-25 23:51:59,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:51:59,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:51:59,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:51:59,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:51:59,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:51:57" (1/3) ... [2022-11-25 23:51:59,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253d0eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:59, skipping insertion in model container [2022-11-25 23:51:59,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:51:58" (2/3) ... [2022-11-25 23:51:59,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@253d0eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:59, skipping insertion in model container [2022-11-25 23:51:59,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:59" (3/3) ... [2022-11-25 23:51:59,513 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_68_bad.i [2022-11-25 23:51:59,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:51:59,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:51:59,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:51:59,584 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;@43787896, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:51:59,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:51:59,589 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 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) [2022-11-25 23:51:59,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:51:59,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:59,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:59,597 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:51:59,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:59,603 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-25 23:51:59,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:51:59,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137369326] [2022-11-25 23:51:59,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:59,621 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 [2022-11-25 23:51:59,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:51:59,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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) [2022-11-25 23:51:59,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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 [2022-11-25 23:51:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:59,815 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:51:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:51:59,913 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:51:59,920 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:51:59,921 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:51:59,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:51:59,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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 [2022-11-25 23:52:00,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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 [2022-11-25 23:52:00,136 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:52:00,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:52:00,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:52:00 BoogieIcfgContainer [2022-11-25 23:52:00,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:52:00,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:52:00,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:52:00,182 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:52:00,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:59" (3/4) ... [2022-11-25 23:52:00,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:52:00,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:52:00,193 INFO L158 Benchmark]: Toolchain (without parser) took 2599.53ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 23.8MB in the beginning and 54.6MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:52:00,194 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:52:00,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1353.00ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 23.6MB in the beginning and 44.1MB in the end (delta: -20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:52:00,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.37ms. Allocated memory is still 86.0MB. Free memory was 44.1MB in the beginning and 41.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:52:00,202 INFO L158 Benchmark]: Boogie Preprocessor took 62.56ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:52:00,204 INFO L158 Benchmark]: RCFGBuilder took 407.43ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 49.3MB in the end (delta: -10.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:52:00,205 INFO L158 Benchmark]: TraceAbstraction took 673.48ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 55.1MB in the end (delta: -6.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-11-25 23:52:00,206 INFO L158 Benchmark]: Witness Printer took 9.86ms. Allocated memory is still 86.0MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:52:00,213 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory is still 38.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1353.00ms. Allocated memory was 60.8MB in the beginning and 86.0MB in the end (delta: 25.2MB). Free memory was 23.6MB in the beginning and 44.1MB in the end (delta: -20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.37ms. Allocated memory is still 86.0MB. Free memory was 44.1MB in the beginning and 41.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.56ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 39.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.43ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 49.3MB in the end (delta: -10.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 673.48ms. Allocated memory is still 86.0MB. Free memory was 48.5MB in the beginning and 55.1MB in the end (delta: -6.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 9.86ms. Allocated memory is still 86.0MB. Free memory is still 54.6MB. 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: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] int CWE191_Integer_Underflow__int_fgets_multiply_68_badData; [L1550] int CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, 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) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_multiply_68_badData=0, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE191_Integer_Underflow__int_fgets_multiply_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE191_Integer_Underflow__int_fgets_multiply_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_multiply_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_multiply_68_badData; VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, 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] [L1584] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, 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] [L1586] data * 2 VAL [CWE191_Integer_Underflow__int_fgets_multiply_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_multiply_68_goodB2GData=0, 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: 1586]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=24occurred 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, 0.0s 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 [2022-11-25 23:52:00,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8b36f94-bc30-4bbf-ba83-9f0d92d481d1/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