./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_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_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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_25a4569f-a964-4f56-8d17-9189ab185b52/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 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 --- 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 10:00:55,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:00:55,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:00:55,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:00:55,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:00:55,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:00:55,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:00:55,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:00:55,072 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:00:55,073 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:00:55,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:00:55,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:00:55,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:00:55,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:00:55,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:00:55,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:00:55,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:00:55,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:00:55,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:00:55,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:00:55,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:00:55,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:00:55,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:00:55,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:00:55,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:00:55,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:00:55,085 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:00:55,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:00:55,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:00:55,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:00:55,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:00:55,087 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:00:55,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:00:55,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:00:55,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:00:55,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:00:55,089 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:00:55,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:00:55,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:00:55,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:00:55,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:00:55,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:00:55,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:00:55,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:00:55,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:00:55,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:00:55,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:00:55,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:00:55,105 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:00:55,106 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:00:55,106 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:00:55,106 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:00:55,106 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:00:55,106 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:00:55,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:00:55,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:00:55,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:00:55,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:00:55,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:00:55,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:00:55,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:00:55,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:00:55,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:00:55,109 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:00:55,109 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_25a4569f-a964-4f56-8d17-9189ab185b52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 [2022-12-14 10:00:55,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:00:55,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:00:55,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:00:55,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:00:55,310 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:00:55,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:00:57,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:00:58,058 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:00:58,058 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:00:58,072 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/3ed6beb32/bb6d7fba2d0341a2af76f4de921a6379/FLAGbdb885661 [2022-12-14 10:00:58,393 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/3ed6beb32/bb6d7fba2d0341a2af76f4de921a6379 [2022-12-14 10:00:58,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:00:58,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:00:58,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:00:58,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:00:58,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:00:58,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:00:58" (1/1) ... [2022-12-14 10:00:58,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2f0a56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:58, skipping insertion in model container [2022-12-14 10:00:58,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:00:58" (1/1) ... [2022-12-14 10:00:58,412 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:00:58,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:00:58,671 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:00:59,027 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:00:59,031 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:00:59,033 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:00:59,035 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:00:59,035 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:00:59,059 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:00:59,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:00:59,068 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:00:59,083 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:00:59,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:00:59,117 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:00:59,118 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:00:59,120 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:00:59,120 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:00:59,124 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:00:59,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:00:59,231 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:00:59,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59 WrapperNode [2022-12-14 10:00:59,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:00:59,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:00:59,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:00:59,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:00:59,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,272 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 10:00:59,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:00:59,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:00:59,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:00:59,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:00:59,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,288 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:00:59,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:00:59,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:00:59,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:00:59,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (1/1) ... [2022-12-14 10:00:59,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:00:59,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:00:59,316 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:00:59,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:00:59,348 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:00:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:00:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:00:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:00:59,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:00:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:00:59,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:00:59,462 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:00:59,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:00:59,575 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:00:59,634 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:00:59,635 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:00:59,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:59 BoogieIcfgContainer [2022-12-14 10:00:59,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:00:59,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:00:59,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:00:59,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:00:59,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:00:58" (1/3) ... [2022-12-14 10:00:59,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41339fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:00:59, skipping insertion in model container [2022-12-14 10:00:59,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:00:59" (2/3) ... [2022-12-14 10:00:59,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41339fac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:00:59, skipping insertion in model container [2022-12-14 10:00:59,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:59" (3/3) ... [2022-12-14 10:00:59,645 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:00:59,664 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:00:59,664 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:00:59,709 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:00:59,715 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;@54f0638e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:00:59,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:00:59,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:00:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 10:00:59,725 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:00:59,726 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 10:00:59,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:00:59,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:00:59,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2142650544, now seen corresponding path program 1 times [2022-12-14 10:00:59,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:00:59,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465832149] [2022-12-14 10:00:59,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:00:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:00:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:00:59,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:00:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:00:59,952 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:00:59,954 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:00:59,955 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:00:59,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:00:59,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:00:59,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 10:00:59,967 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:00:59,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:00:59 BoogieIcfgContainer [2022-12-14 10:00:59,987 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:00:59,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:00:59,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:00:59,987 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:00:59,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:00:59" (3/4) ... [2022-12-14 10:00:59,991 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:00:59,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:00:59,992 INFO L158 Benchmark]: Toolchain (without parser) took 1595.34ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 89.4MB in the beginning and 64.3MB in the end (delta: 25.1MB). Peak memory consumption was 54.0MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,992 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:00:59,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 834.34ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 89.0MB in the beginning and 108.3MB in the end (delta: -19.3MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.34ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 105.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,994 INFO L158 Benchmark]: Boogie Preprocessor took 18.49ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 104.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,994 INFO L158 Benchmark]: RCFGBuilder took 345.99ms. Allocated memory is still 155.2MB. Free memory was 104.1MB in the beginning and 85.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,995 INFO L158 Benchmark]: TraceAbstraction took 347.22ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 64.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 10:00:59,995 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 155.2MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:00:59,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory is still 99.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 834.34ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 89.0MB in the beginning and 108.3MB in the end (delta: -19.3MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.34ms. Allocated memory is still 155.2MB. Free memory was 108.3MB in the beginning and 105.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.49ms. Allocated memory is still 155.2MB. Free memory was 105.4MB in the beginning and 104.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 345.99ms. Allocated memory is still 155.2MB. Free memory was 104.1MB in the beginning and 85.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 347.22ms. Allocated memory is still 155.2MB. Free memory was 84.4MB in the beginning and 64.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 155.2MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1559, overapproximation of bitwiseAnd at line 1559. 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); [L1565] 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) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1559] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1559] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1559] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL badSink(data) [L1551] data - 1 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 6 NumberOfCodeBlocks, 6 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 10:01:00,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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_25a4569f-a964-4f56-8d17-9189ab185b52/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 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 --- 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 10:01:01,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:01:01,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:01:01,622 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:01:01,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:01:01,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:01:01,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:01:01,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:01:01,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:01:01,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:01:01,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:01:01,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:01:01,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:01:01,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:01:01,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:01:01,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:01:01,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:01:01,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:01:01,637 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:01:01,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:01:01,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:01:01,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:01:01,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:01:01,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:01:01,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:01:01,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:01:01,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:01:01,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:01:01,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:01:01,652 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:01:01,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:01:01,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:01:01,654 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:01:01,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:01:01,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:01:01,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:01:01,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:01:01,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:01:01,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:01:01,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:01:01,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:01:01,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 10:01:01,680 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:01:01,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:01:01,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:01:01,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:01:01,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:01:01,681 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:01:01,681 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:01:01,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:01:01,681 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:01:01,681 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:01:01,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:01:01,682 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:01:01,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:01:01,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:01:01,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:01:01,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:01:01,683 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:01:01,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:01,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:01:01,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:01:01,685 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:01:01,685 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:01:01,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:01:01,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:01:01,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:01:01,685 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_25a4569f-a964-4f56-8d17-9189ab185b52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 [2022-12-14 10:01:01,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:01:01,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:01:01,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:01:01,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:01:01,952 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:01:01,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:01:04,501 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:01:04,735 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:01:04,735 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:01:04,750 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/6a58961dd/a1468afdfd094408a3bd77fe9432ac4e/FLAG7b2a2e7a7 [2022-12-14 10:01:04,761 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/data/6a58961dd/a1468afdfd094408a3bd77fe9432ac4e [2022-12-14 10:01:04,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:01:04,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:01:04,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:04,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:01:04,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:01:04,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:04" (1/1) ... [2022-12-14 10:01:04,770 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 10:01:04, skipping insertion in model container [2022-12-14 10:01:04,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:04" (1/1) ... [2022-12-14 10:01:04,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:01:04,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:01:05,077 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:01:05,386 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:05,390 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:01:05,396 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:01:05,398 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:01:05,399 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:01:05,417 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:01:05,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:05,428 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:01:05,441 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:01:05,472 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:01:05,473 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:01:05,474 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:01:05,475 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:01:05,475 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:01:05,479 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:01:05,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:05,571 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:01:05,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05 WrapperNode [2022-12-14 10:01:05,571 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:05,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:05,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:01:05,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:01:05,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,620 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 10:01:05,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:05,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:01:05,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:01:05,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:01:05,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,630 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,645 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:01:05,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:01:05,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:01:05,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:01:05,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (1/1) ... [2022-12-14 10:01:05,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:05,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:01:05,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:01:05,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:01:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:01:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:01:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:01:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:01:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:01:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:01:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:01:05,842 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:01:05,844 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:01:05,959 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:01:05,964 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:01:05,965 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:01:05,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:05 BoogieIcfgContainer [2022-12-14 10:01:05,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:01:05,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:01:05,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:01:05,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:01:05,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:01:04" (1/3) ... [2022-12-14 10:01:05,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcbff19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:05, skipping insertion in model container [2022-12-14 10:01:05,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:05" (2/3) ... [2022-12-14 10:01:05,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fcbff19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:05, skipping insertion in model container [2022-12-14 10:01:05,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:05" (3/3) ... [2022-12-14 10:01:05,975 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-12-14 10:01:05,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:01:05,990 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:01:06,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:01:06,036 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;@38c8b47e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:01:06,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:01:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:01:06,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:01:06,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:06,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:06,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:01:06,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:06,052 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-12-14 10:01:06,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:01:06,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800744303] [2022-12-14 10:01:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:06,064 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 10:01:06,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:01:06,066 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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 10:01:06,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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 10:01:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:01:06,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:01:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:01:06,233 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:01:06,235 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:01:06,236 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:01:06,238 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:01:06,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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 10:01:06,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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 10:01:06,443 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 10:01:06,448 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:01:06,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:01:06 BoogieIcfgContainer [2022-12-14 10:01:06,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:01:06,472 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:01:06,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:01:06,472 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:01:06,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:05" (3/4) ... [2022-12-14 10:01:06,474 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 10:01:06,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 10:01:06,507 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:01:06,508 INFO L158 Benchmark]: Toolchain (without parser) took 1742.66ms. Allocated memory is still 65.0MB. Free memory was 35.1MB in the beginning and 23.9MB in the end (delta: 11.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,508 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:01:06,508 INFO L158 Benchmark]: CACSL2BoogieTranslator took 805.91ms. Allocated memory is still 65.0MB. Free memory was 34.8MB in the beginning and 29.3MB in the end (delta: 5.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,509 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.09ms. Allocated memory is still 65.0MB. Free memory was 29.3MB in the beginning and 26.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,509 INFO L158 Benchmark]: Boogie Preprocessor took 28.94ms. Allocated memory is still 65.0MB. Free memory was 26.1MB in the beginning and 24.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,509 INFO L158 Benchmark]: RCFGBuilder took 316.29ms. Allocated memory is still 65.0MB. Free memory was 24.2MB in the beginning and 27.4MB in the end (delta: -3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,510 INFO L158 Benchmark]: TraceAbstraction took 502.22ms. Allocated memory is still 65.0MB. Free memory was 26.7MB in the beginning and 26.2MB in the end (delta: 461.5kB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,510 INFO L158 Benchmark]: Witness Printer took 35.05ms. Allocated memory is still 65.0MB. Free memory was 26.2MB in the beginning and 23.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:01:06,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 31.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 805.91ms. Allocated memory is still 65.0MB. Free memory was 34.8MB in the beginning and 29.3MB in the end (delta: 5.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.09ms. Allocated memory is still 65.0MB. Free memory was 29.3MB in the beginning and 26.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.94ms. Allocated memory is still 65.0MB. Free memory was 26.1MB in the beginning and 24.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.29ms. Allocated memory is still 65.0MB. Free memory was 24.2MB in the beginning and 27.4MB in the end (delta: -3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 502.22ms. Allocated memory is still 65.0MB. Free memory was 26.7MB in the beginning and 26.2MB in the end (delta: 461.5kB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 35.05ms. Allocated memory is still 65.0MB. Free memory was 26.2MB in the beginning and 23.9MB in the end (delta: 2.3MB). 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: 1551]: 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] [L1565] 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) [L1565] 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] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1559] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1559] 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()=32767, rand()=0, rand()=0, rand()=65535, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1559] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL badSink(data) [L1551] data - 1 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 10:01:06,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25a4569f-a964-4f56-8d17-9189ab185b52/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)