./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 129a3d2d8d92aa7d141772d4ac8a897ab2e987a1f5e71e1ae67a2165041d52aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:40:50,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:40:50,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:40:50,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:40:50,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:40:50,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:40:50,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:40:50,500 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:40:50,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:40:50,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:40:50,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:40:50,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:40:50,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:40:50,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:40:50,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:40:50,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:40:50,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:40:50,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:40:50,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:40:50,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:40:50,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:40:50,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:40:50,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:40:50,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:40:50,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:40:50,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:40:50,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:40:50,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:40:50,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:40:50,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:40:50,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:40:50,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:40:50,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:40:50,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:40:50,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:40:50,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:40:50,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:40:50,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:40:50,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:40:50,531 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:40:50,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:40:50,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 14:40:50,552 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:40:50,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:40:50,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:40:50,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:40:50,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:40:50,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:40:50,554 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:40:50,554 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:40:50,554 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:40:50,554 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:40:50,555 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:40:50,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:40:50,555 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:40:50,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:40:50,555 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:40:50,556 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:40:50,556 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:40:50,556 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:40:50,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:40:50,557 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:40:50,557 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:40:50,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:40:50,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:40:50,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:40:50,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:40:50,558 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:40:50,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:40:50,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:40:50,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:40:50,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:40:50,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:40:50,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:40:50,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:40:50,559 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:40:50,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:40:50,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:40:50,560 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:40:50,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:40:50,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:40:50,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:40:50,560 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_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 129a3d2d8d92aa7d141772d4ac8a897ab2e987a1f5e71e1ae67a2165041d52aa [2022-12-14 14:40:50,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:40:50,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:40:50,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:40:50,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:40:50,763 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:40:50,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:40:53,381 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:40:53,635 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:40:53,636 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:40:53,661 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/fe08e3584/78816b0078ce4c3caedd874fe6f97f52/FLAGac83c90e4 [2022-12-14 14:40:53,939 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/fe08e3584/78816b0078ce4c3caedd874fe6f97f52 [2022-12-14 14:40:53,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:40:53,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:40:53,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:40:53,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:40:53,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:40:53,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:53" (1/1) ... [2022-12-14 14:40:53,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b49ac22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:53, skipping insertion in model container [2022-12-14 14:40:53,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:40:53" (1/1) ... [2022-12-14 14:40:53,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:40:54,002 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:40:54,227 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:40:54,538 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:40:54,543 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:40:54,545 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:40:54,548 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:40:54,549 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:40:54,576 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:40:54,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:40:54,587 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:40:54,605 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:40:54,649 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:40:54,650 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:40:54,651 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:40:54,653 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:40:54,654 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:40:54,660 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:40:54,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:40:54,824 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:40:54,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54 WrapperNode [2022-12-14 14:40:54,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:40:54,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:40:54,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:40:54,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:40:54,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,886 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-14 14:40:54,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:40:54,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:40:54,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:40:54,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:40:54,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:40:54,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:40:54,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:40:54,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:40:54,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (1/1) ... [2022-12-14 14:40:54,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:40:54,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:40:54,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:40:54,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:40:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:40:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:40:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:40:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:40:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:40:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-14 14:40:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-14 14:40:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:40:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:40:55,088 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:40:55,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:40:55,226 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:40:55,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:40:55,315 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:40:55,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:55 BoogieIcfgContainer [2022-12-14 14:40:55,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:40:55,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:40:55,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:40:55,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:40:55,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:40:53" (1/3) ... [2022-12-14 14:40:55,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f807e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:55, skipping insertion in model container [2022-12-14 14:40:55,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:40:54" (2/3) ... [2022-12-14 14:40:55,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f807e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:40:55, skipping insertion in model container [2022-12-14 14:40:55,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:55" (3/3) ... [2022-12-14 14:40:55,327 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:40:55,344 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:40:55,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:40:55,385 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:40:55,391 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;@29d59cac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:40:55,391 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:40:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:40:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 14:40:55,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:40:55,402 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:40:55,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:40:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:40:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash -47595731, now seen corresponding path program 1 times [2022-12-14 14:40:55,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:40:55,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970706574] [2022-12-14 14:40:55,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:40:55,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:40:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:40:55,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:40:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:40:55,655 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:40:55,657 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:40:55,658 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:40:55,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:40:55,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:40:55,663 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:40:55,667 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:40:55,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:40:55 BoogieIcfgContainer [2022-12-14 14:40:55,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:40:55,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:40:55,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:40:55,693 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:40:55,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:40:55" (3/4) ... [2022-12-14 14:40:55,696 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:40:55,696 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:40:55,697 INFO L158 Benchmark]: Toolchain (without parser) took 1754.41ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 101.6MB in the beginning and 83.8MB in the end (delta: 17.8MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,697 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:40:55,698 INFO L158 Benchmark]: CACSL2BoogieTranslator took 882.26ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 101.1MB in the beginning and 133.1MB in the end (delta: -32.0MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,698 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.13ms. Allocated memory is still 178.3MB. Free memory was 133.1MB in the beginning and 130.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,699 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 178.3MB. Free memory was 130.0MB in the beginning and 127.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,699 INFO L158 Benchmark]: RCFGBuilder took 402.17ms. Allocated memory is still 178.3MB. Free memory was 127.9MB in the beginning and 106.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,700 INFO L158 Benchmark]: TraceAbstraction took 370.93ms. Allocated memory is still 178.3MB. Free memory was 106.9MB in the beginning and 83.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-14 14:40:55,700 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 178.3MB. Free memory is still 83.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:40:55,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 882.26ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 101.1MB in the beginning and 133.1MB in the end (delta: -32.0MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.13ms. Allocated memory is still 178.3MB. Free memory was 133.1MB in the beginning and 130.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 178.3MB. Free memory was 130.0MB in the beginning and 127.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.17ms. Allocated memory is still 178.3MB. Free memory was 127.9MB in the beginning and 106.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 370.93ms. Allocated memory is still 178.3MB. Free memory was 106.9MB in the beginning and 83.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 178.3MB. Free memory is still 83.8MB. 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1562, overapproximation of bitwiseAnd at line 1562. 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); [L1575] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483652:2147483651}, argv={2147483652:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_rand_sub_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() 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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483649, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] data - 1 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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483649] - UnprovableResult [Line: 1567]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, 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=20occurred 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, 15 NumberOfCodeBlocks, 15 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 [2022-12-14 14:40:55,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 129a3d2d8d92aa7d141772d4ac8a897ab2e987a1f5e71e1ae67a2165041d52aa --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 14:40:57,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:40:57,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:40:57,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:40:57,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:40:57,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:40:57,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:40:57,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:40:57,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:40:57,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:40:57,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:40:57,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:40:57,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:40:57,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:40:57,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:40:57,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:40:57,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:40:57,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:40:57,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:40:57,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:40:57,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:40:57,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:40:57,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:40:57,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:40:57,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:40:57,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:40:57,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:40:57,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:40:57,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:40:57,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:40:57,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:40:57,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:40:57,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:40:57,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:40:57,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:40:57,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:40:57,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:40:57,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:40:57,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:40:57,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:40:57,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:40:57,298 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 14:40:57,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:40:57,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:40:57,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:40:57,323 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:40:57,323 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:40:57,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:40:57,324 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:40:57,324 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:40:57,324 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:40:57,324 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:40:57,325 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:40:57,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:40:57,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:40:57,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 14:40:57,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:40:57,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:40:57,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:40:57,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:40:57,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:40:57,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:40:57,327 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 14:40:57,327 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:40:57,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:40:57,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:40:57,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:40:57,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:40:57,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:40:57,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:40:57,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:40:57,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:40:57,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:40:57,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:40:57,330 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:40:57,330 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:40:57,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:40:57,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:40:57,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:40:57,330 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_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 129a3d2d8d92aa7d141772d4ac8a897ab2e987a1f5e71e1ae67a2165041d52aa [2022-12-14 14:40:57,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:40:57,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:40:57,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:40:57,581 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:40:57,581 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:40:57,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:41:00,159 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:41:00,393 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:41:00,393 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:41:00,412 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/3c6b81dab/f3d66131c73d4a6a8f81b30b05a48c4d/FLAG812bdc7a0 [2022-12-14 14:41:00,427 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/data/3c6b81dab/f3d66131c73d4a6a8f81b30b05a48c4d [2022-12-14 14:41:00,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:41:00,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:41:00,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:41:00,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:41:00,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:41:00,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:41:00" (1/1) ... [2022-12-14 14:41:00,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7824e437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:00, skipping insertion in model container [2022-12-14 14:41:00,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:41:00" (1/1) ... [2022-12-14 14:41:00,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:41:00,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:41:00,713 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:41:01,083 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:41:01,087 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:41:01,088 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:41:01,090 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:41:01,090 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:41:01,108 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:41:01,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:41:01,117 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:41:01,131 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 14:41:01,162 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 14:41:01,163 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:41:01,164 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 14:41:01,166 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:41:01,166 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 14:41:01,170 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 14:41:01,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:41:01,326 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:41:01,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01 WrapperNode [2022-12-14 14:41:01,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:41:01,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:41:01,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:41:01,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:41:01,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,377 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-14 14:41:01,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:41:01,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:41:01,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:41:01,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:41:01,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:41:01,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:41:01,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:41:01,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:41:01,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (1/1) ... [2022-12-14 14:41:01,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:41:01,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:41:01,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:41:01,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:41:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 14:41:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 14:41:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 14:41:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:41:01,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:41:01,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:41:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-14 14:41:01,475 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-14 14:41:01,475 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 14:41:01,605 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:41:01,607 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:41:01,723 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:41:01,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:41:01,728 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 14:41:01,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:41:01 BoogieIcfgContainer [2022-12-14 14:41:01,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:41:01,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:41:01,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:41:01,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:41:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:41:00" (1/3) ... [2022-12-14 14:41:01,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100f16ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:41:01, skipping insertion in model container [2022-12-14 14:41:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:41:01" (2/3) ... [2022-12-14 14:41:01,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@100f16ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:41:01, skipping insertion in model container [2022-12-14 14:41:01,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:41:01" (3/3) ... [2022-12-14 14:41:01,735 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_08_bad.i [2022-12-14 14:41:01,749 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:41:01,749 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 14:41:01,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:41:01,788 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;@37b87fe0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:41:01,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 14:41:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 14:41:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 14:41:01,801 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:41:01,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:41:01,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:41:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:41:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-12-14 14:41:01,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:41:01,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480914176] [2022-12-14 14:41:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:41:01,815 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:41:01,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:41:01,816 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:41:01,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 14:41:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:41:01,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:41:01,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:41:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:41:01,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:41:01,969 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:41:01,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480914176] [2022-12-14 14:41:01,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480914176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:41:01,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:41:01,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:41:01,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232436620] [2022-12-14 14:41:01,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:41:01,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:41:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:41:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:41:02,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:41:02,007 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 14:41:02,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:41:02,034 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-12-14 14:41:02,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 14:41:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-14 14:41:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:41:02,042 INFO L225 Difference]: With dead ends: 47 [2022-12-14 14:41:02,042 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 14:41:02,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:41:02,047 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 14:41:02,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 14:41:02,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 14:41:02,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 14:41:02,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 14:41:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 14:41:02,074 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-12-14 14:41:02,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:41:02,075 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 14:41:02,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 14:41:02,076 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 14:41:02,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 14:41:02,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:41:02,077 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:41:02,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:41:02,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:41:02,279 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 14:41:02,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:41:02,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-12-14 14:41:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:41:02,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271973683] [2022-12-14 14:41:02,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:41:02,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:41:02,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:41:02,288 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 14:41:02,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 14:41:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:41:02,346 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:41:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:41:02,420 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 14:41:02,420 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:41:02,423 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 14:41:02,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 14:41:02,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 14:41:02,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 14:41:02,637 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 14:41:02,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:41:02,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:41:02 BoogieIcfgContainer [2022-12-14 14:41:02,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:41:02,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:41:02,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:41:02,785 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:41:02,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:41:01" (3/4) ... [2022-12-14 14:41:02,793 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 14:41:02,883 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 14:41:02,883 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:41:02,884 INFO L158 Benchmark]: Toolchain (without parser) took 2452.71ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 46.8MB in the beginning and 53.1MB in the end (delta: -6.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,884 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:41:02,885 INFO L158 Benchmark]: CACSL2BoogieTranslator took 894.76ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 46.6MB in the beginning and 58.4MB in the end (delta: -11.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,885 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.85ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 55.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,886 INFO L158 Benchmark]: Boogie Preprocessor took 31.31ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,886 INFO L158 Benchmark]: RCFGBuilder took 319.46ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 39.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,886 INFO L158 Benchmark]: TraceAbstraction took 1050.36ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 55.7MB in the end (delta: -17.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,887 INFO L158 Benchmark]: Witness Printer took 99.75ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 53.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 14:41:02,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 73.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 894.76ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 46.6MB in the beginning and 58.4MB in the end (delta: -11.8MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.85ms. Allocated memory is still 83.9MB. Free memory was 58.4MB in the beginning and 55.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.31ms. Allocated memory is still 83.9MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.46ms. Allocated memory is still 83.9MB. Free memory was 53.3MB in the beginning and 39.5MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1050.36ms. Allocated memory is still 83.9MB. Free memory was 38.6MB in the beginning and 55.7MB in the end (delta: -17.1MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Witness Printer took 99.75ms. Allocated memory is still 83.9MB. Free memory was 55.7MB in the beginning and 53.1MB in the end (delta: 2.6MB). 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 - CounterExampleResult [Line: 1567]: integer overflow possible integer overflow possible We found a 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] [L1575] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1575] 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] [L1576] CALL CWE191_Integer_Underflow__int_rand_sub_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=2, rand()=1, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() 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, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] data - 1 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: 1567]: 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, 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, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 proved your program to be incorrect! [2022-12-14 14:41:02,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0205d28-ea63-4483-9101-47c3d102e813/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)