./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:13:08,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:13:08,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:13:08,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:13:08,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:13:08,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:13:08,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:13:08,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:13:08,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:13:08,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:13:08,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:13:08,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:13:08,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:13:08,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:13:08,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:13:08,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:13:08,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:13:08,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:13:08,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:13:08,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:13:08,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:13:08,974 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:13:08,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:13:08,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:13:08,980 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:13:08,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:13:08,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:13:08,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:13:08,983 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:13:08,984 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:13:08,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:13:08,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:13:08,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:13:08,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:13:08,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:13:08,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:13:08,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:13:08,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:13:08,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:13:08,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:13:08,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:13:08,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:13:09,021 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:13:09,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:13:09,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:13:09,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:13:09,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:13:09,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:13:09,024 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:13:09,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:13:09,025 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:13:09,025 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:13:09,026 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:13:09,026 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:13:09,026 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:13:09,027 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:13:09,027 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:13:09,027 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:13:09,028 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:13:09,028 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:13:09,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:13:09,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:13:09,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:13:09,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:13:09,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:13:09,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:13:09,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:13:09,031 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:13:09,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:13:09,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:13:09,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:13:09,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:13:09,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:13:09,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:09,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:13:09,034 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:13:09,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:13:09,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:13:09,035 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:13:09,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:13:09,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:13:09,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:13:09,036 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_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a [2022-11-26 00:13:09,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:13:09,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:13:09,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:13:09,345 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:13:09,346 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:13:09,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:12,811 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:13:13,206 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:13:13,207 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:13,229 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/5b183bde4/ac511c4b686e471994fbc81de95811ee/FLAGba57043ed [2022-11-26 00:13:13,258 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/5b183bde4/ac511c4b686e471994fbc81de95811ee [2022-11-26 00:13:13,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:13:13,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:13:13,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:13,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:13:13,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:13:13,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:13" (1/1) ... [2022-11-26 00:13:13,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aadf673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:13, skipping insertion in model container [2022-11-26 00:13:13,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:13" (1/1) ... [2022-11-26 00:13:13,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:13:13,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:13:13,766 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:13:14,386 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:13:14,394 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:14,396 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:14,400 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:14,401 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:14,437 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:13:14,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:14,453 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:13:14,481 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:13:14,599 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:13:14,603 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:14,604 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:14,611 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:14,620 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:14,624 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:13:14,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:14,882 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:13:14,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14 WrapperNode [2022-11-26 00:13:14,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:14,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:14,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:13:14,886 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:13:14,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:14,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,002 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-11-26 00:13:15,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:15,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:13:15,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:13:15,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:13:15,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,043 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:13:15,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:13:15,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:13:15,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:13:15,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (1/1) ... [2022-11-26 00:13:15,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:15,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:13:15,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:13:15,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:13:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:13:15,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:13:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:13:15,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:13:15,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:13:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:13:15,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:13:15,399 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:13:15,401 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:13:15,600 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:13:15,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:13:15,693 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:13:15,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:15 BoogieIcfgContainer [2022-11-26 00:13:15,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:13:15,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:13:15,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:13:15,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:13:15,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:13:13" (1/3) ... [2022-11-26 00:13:15,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb61a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:15, skipping insertion in model container [2022-11-26 00:13:15,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:14" (2/3) ... [2022-11-26 00:13:15,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb61a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:15, skipping insertion in model container [2022-11-26 00:13:15,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:15" (3/3) ... [2022-11-26 00:13:15,708 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:15,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:13:15,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:13:15,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:13:15,793 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;@67171b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:13:15,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:13:15,798 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) [2022-11-26 00:13:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:13:15,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:15,808 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:13:15,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:13:15,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:15,815 INFO L85 PathProgramCache]: Analyzing trace with hash 2123687603, now seen corresponding path program 1 times [2022-11-26 00:13:15,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:13:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050446442] [2022-11-26 00:13:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:13:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:13:16,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:13:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:13:16,243 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:13:16,248 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:13:16,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:13:16,252 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:13:16,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:13:16,266 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:13:16,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:13:16,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:13:16 BoogieIcfgContainer [2022-11-26 00:13:16,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:13:16,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:13:16,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:13:16,321 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:13:16,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:15" (3/4) ... [2022-11-26 00:13:16,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:13:16,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:13:16,328 INFO L158 Benchmark]: Toolchain (without parser) took 3059.30ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 96.8MB in the beginning and 134.6MB in the end (delta: -37.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-11-26 00:13:16,329 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:13:16,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1610.34ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 96.5MB in the beginning and 122.1MB in the end (delta: -25.7MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-11-26 00:13:16,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.83ms. Allocated memory is still 180.4MB. Free memory was 122.1MB in the beginning and 118.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:13:16,338 INFO L158 Benchmark]: Boogie Preprocessor took 44.51ms. Allocated memory is still 180.4MB. Free memory was 118.8MB in the beginning and 117.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:13:16,338 INFO L158 Benchmark]: RCFGBuilder took 647.91ms. Allocated memory is still 180.4MB. Free memory was 117.1MB in the beginning and 98.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:13:16,339 INFO L158 Benchmark]: TraceAbstraction took 618.74ms. Allocated memory is still 180.4MB. Free memory was 97.0MB in the beginning and 134.6MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:13:16,339 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 180.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:13:16,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 138.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1610.34ms. Allocated memory was 138.4MB in the beginning and 180.4MB in the end (delta: 41.9MB). Free memory was 96.5MB in the beginning and 122.1MB in the end (delta: -25.7MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.83ms. Allocated memory is still 180.4MB. Free memory was 122.1MB in the beginning and 118.8MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.51ms. Allocated memory is still 180.4MB. Free memory was 118.8MB in the beginning and 117.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 647.91ms. Allocated memory is still 180.4MB. Free memory was 117.1MB in the beginning and 98.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 618.74ms. Allocated memory is still 180.4MB. Free memory was 97.0MB in the beginning and 134.6MB in the end (delta: -37.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 180.4MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1569, overapproximation of bitwiseAnd at line 1569. 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); [L1562] 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) [L1562] RET printLine("Calling bad()...") VAL [\old(argc)=3221225473, argc=3221225473, argv={3221225475:3221225474}, argv={3221225475:3221225474}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE191_Integer_Underflow__int_rand_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1569] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1570] return data; [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1555] 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: 1555]: 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: 0.5s, 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, 0.2s 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 [2022-11-26 00:13:16,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:13:19,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:13:19,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:13:19,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:13:19,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:13:19,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:13:19,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:13:19,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:13:19,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:13:19,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:13:19,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:13:19,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:13:19,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:13:19,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:13:19,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:13:19,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:13:19,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:13:19,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:13:19,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:13:19,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:13:19,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:13:19,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:13:19,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:13:19,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:13:19,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:13:19,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:13:19,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:13:19,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:13:19,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:13:19,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:13:19,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:13:19,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:13:19,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:13:19,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:13:19,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:13:19,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:13:19,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:13:19,215 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:13:19,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:13:19,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:13:19,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:13:19,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:13:19,276 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:13:19,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:13:19,280 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:13:19,280 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:13:19,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:13:19,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:13:19,282 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:13:19,282 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:13:19,283 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:13:19,283 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:13:19,284 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:13:19,285 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:13:19,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:13:19,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:13:19,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:13:19,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:13:19,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:13:19,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:13:19,288 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:13:19,288 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:13:19,289 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:13:19,289 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:13:19,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:13:19,290 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:13:19,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:13:19,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:13:19,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:13:19,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:13:19,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:19,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:13:19,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:13:19,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:13:19,293 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:13:19,294 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:13:19,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:13:19,294 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:13:19,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:13:19,295 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_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 989e6c455156ebae5504eabe977a595207f220711402a373c7b868b5dceff99a [2022-11-26 00:13:19,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:13:19,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:13:19,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:13:19,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:13:19,838 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:13:19,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:23,155 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:13:23,691 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:13:23,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:23,723 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/a783f27d8/8708a047ae9243f496de47e53b9833f0/FLAGc73f300f5 [2022-11-26 00:13:23,740 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/data/a783f27d8/8708a047ae9243f496de47e53b9833f0 [2022-11-26 00:13:23,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:13:23,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:13:23,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:23,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:13:23,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:13:23,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:23" (1/1) ... [2022-11-26 00:13:23,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1127cb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:23, skipping insertion in model container [2022-11-26 00:13:23,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:13:23" (1/1) ... [2022-11-26 00:13:23,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:13:23,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:13:24,425 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:13:25,213 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:13:25,221 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:25,225 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:25,236 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:25,238 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:25,284 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:13:25,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:25,315 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:13:25,346 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:13:25,395 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:13:25,397 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:25,398 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:13:25,400 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:25,401 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:13:25,405 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:13:25,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:13:25,583 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:13:25,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25 WrapperNode [2022-11-26 00:13:25,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:13:25,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:25,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:13:25,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:13:25,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,657 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-11-26 00:13:25,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:13:25,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:13:25,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:13:25,660 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:13:25,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,692 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:13:25,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:13:25,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:13:25,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:13:25,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (1/1) ... [2022-11-26 00:13:25,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:13:25,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:13:25,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:13:25,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:13:25,796 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:13:25,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:13:25,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:13:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:13:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:13:25,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:13:25,798 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:13:26,011 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:13:26,015 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:13:26,163 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:13:26,170 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:13:26,175 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:13:26,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:26 BoogieIcfgContainer [2022-11-26 00:13:26,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:13:26,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:13:26,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:13:26,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:13:26,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:13:23" (1/3) ... [2022-11-26 00:13:26,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392aeb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:26, skipping insertion in model container [2022-11-26 00:13:26,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:13:25" (2/3) ... [2022-11-26 00:13:26,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@392aeb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:13:26, skipping insertion in model container [2022-11-26 00:13:26,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:26" (3/3) ... [2022-11-26 00:13:26,197 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_61_bad.i [2022-11-26 00:13:26,226 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:13:26,227 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:13:26,294 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:13:26,302 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;@749221fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:13:26,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:13:26,308 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) [2022-11-26 00:13:26,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:13:26,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:13:26,321 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:13:26,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:13:26,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:13:26,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1259888207, now seen corresponding path program 1 times [2022-11-26 00:13:26,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:13:26,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038411458] [2022-11-26 00:13:26,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:13:26,357 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:13:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:13:26,367 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:13:26,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:13:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:13:26,590 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:13:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:13:26,662 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:13:26,665 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:13:26,666 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:13:26,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:13:26,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:13:26,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:13:26,891 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:13:26,899 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:13:26,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:13:26 BoogieIcfgContainer [2022-11-26 00:13:26,959 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:13:26,962 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:13:26,963 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:13:26,963 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:13:26,964 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:13:26" (3/4) ... [2022-11-26 00:13:26,966 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:13:27,043 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:13:27,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:13:27,048 INFO L158 Benchmark]: Toolchain (without parser) took 3302.64ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 48.3MB in the end (delta: -2.3MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:13:27,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1836.74ms. Allocated memory is still 71.3MB. Free memory was 45.9MB in the beginning and 29.8MB in the end (delta: 16.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.35ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 59.9MB in the end (delta: -30.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,050 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,053 INFO L158 Benchmark]: RCFGBuilder took 479.15ms. Allocated memory is still 86.0MB. Free memory was 57.8MB in the beginning and 44.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,054 INFO L158 Benchmark]: TraceAbstraction took 778.82ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 51.1MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:13:27,056 INFO L158 Benchmark]: Witness Printer took 85.00ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 48.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:13:27,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1836.74ms. Allocated memory is still 71.3MB. Free memory was 45.9MB in the beginning and 29.8MB in the end (delta: 16.1MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.35ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 29.8MB in the beginning and 59.9MB in the end (delta: -30.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.15ms. Allocated memory is still 86.0MB. Free memory was 57.8MB in the beginning and 44.8MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 778.82ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 51.1MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 85.00ms. Allocated memory is still 86.0MB. Free memory was 50.9MB in the beginning and 48.3MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. 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: 1555]: 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] [L1562] 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) [L1562] 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] [L1563] CALL CWE191_Integer_Underflow__int_rand_sub_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1569] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [\old(data)=0, 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()=0, rand()=65535, rand()=0, rand()=32767, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1569] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1570] return data; VAL [\old(data)=0, \result=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1553] data = CWE191_Integer_Underflow__int_rand_sub_61b_badSource(data) [L1555] 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: 1555]: 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: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:13:27,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b70112b-0681-4533-a01d-907d74138675/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)