./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- 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 04:43:58,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:43:58,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:43:58,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:43:58,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:43:58,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:43:58,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:43:58,987 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:43:58,988 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:43:58,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:43:58,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:43:58,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:43:58,990 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:43:58,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:43:58,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:43:58,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:43:58,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:43:58,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:43:58,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:43:58,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:43:58,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:43:58,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:43:58,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:43:58,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:43:59,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:43:59,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:43:59,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:43:59,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:43:59,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:43:59,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:43:59,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:43:59,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:43:59,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:43:59,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:43:59,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:43:59,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:43:59,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:43:59,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:43:59,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:43:59,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:43:59,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:43:59,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 04:43:59,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:43:59,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:43:59,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:43:59,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:43:59,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:43:59,023 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:43:59,023 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:43:59,024 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:43:59,024 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:43:59,024 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:43:59,024 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:43:59,024 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:43:59,024 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:43:59,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:43:59,025 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 04:43:59,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:43:59,026 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:43:59,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:43:59,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:43:59,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:43:59,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:43:59,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:43:59,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:43:59,027 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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2022-12-14 04:43:59,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:43:59,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:43:59,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:43:59,214 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:43:59,214 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:43:59,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:01,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:44:02,184 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:44:02,185 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:02,204 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/0b71b2f76/2a959f6bf37641cb8ae117e91d0ca489/FLAG589cd3089 [2022-12-14 04:44:02,218 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/0b71b2f76/2a959f6bf37641cb8ae117e91d0ca489 [2022-12-14 04:44:02,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:44:02,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:44:02,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:02,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:44:02,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:44:02,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:02,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c791642 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02, skipping insertion in model container [2022-12-14 04:44:02,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:02,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:44:02,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:44:02,498 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:44:02,766 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:44:02,770 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:02,771 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:02,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:02,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:02,789 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:44:02,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:02,799 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:44:02,811 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:44:02,841 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:44:02,842 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:02,843 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:02,845 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:02,845 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:02,849 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:44:02,850 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:02,980 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:44:02,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02 WrapperNode [2022-12-14 04:44:02,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:02,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:02,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:44:02,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:44:02,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,030 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 04:44:03,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:03,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:44:03,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:44:03,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:44:03,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,048 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:44:03,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:44:03,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:44:03,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:44:03,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (1/1) ... [2022-12-14 04:44:03,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:03,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:44:03,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:44:03,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:44:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 04:44:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 04:44:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:44:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:44:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:44:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 04:44:03,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:44:03,210 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:44:03,211 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:44:03,312 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:44:03,356 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:44:03,357 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:44:03,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:03 BoogieIcfgContainer [2022-12-14 04:44:03,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:44:03,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:44:03,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:44:03,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:44:03,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:44:02" (1/3) ... [2022-12-14 04:44:03,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b161a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:03, skipping insertion in model container [2022-12-14 04:44:03,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:02" (2/3) ... [2022-12-14 04:44:03,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b161a0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:03, skipping insertion in model container [2022-12-14 04:44:03,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:03" (3/3) ... [2022-12-14 04:44:03,364 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:03,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:44:03,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:44:03,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:44:03,416 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;@5624b406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:44:03,416 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:44:03,419 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 04:44:03,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 04:44:03,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:44:03,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 04:44:03,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 04:44:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:44:03,429 INFO L85 PathProgramCache]: Analyzing trace with hash 2123776881, now seen corresponding path program 1 times [2022-12-14 04:44:03,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:44:03,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193127652] [2022-12-14 04:44:03,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:44:03,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:44:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:03,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:44:03,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:03,637 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:44:03,639 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:44:03,640 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 04:44:03,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 04:44:03,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:44:03,647 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:44:03,651 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:44:03,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:44:03 BoogieIcfgContainer [2022-12-14 04:44:03,670 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:44:03,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:44:03,671 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:44:03,671 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:44:03,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:03" (3/4) ... [2022-12-14 04:44:03,675 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:44:03,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:44:03,676 INFO L158 Benchmark]: Toolchain (without parser) took 1453.43ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 97.2MB in the end (delta: 3.4MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2022-12-14 04:44:03,676 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:03,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.44ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 94.1MB in the end (delta: 6.6MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. [2022-12-14 04:44:03,677 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.72ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 91.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:03,677 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 132.1MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:03,678 INFO L158 Benchmark]: RCFGBuilder took 306.38ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 71.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 04:44:03,678 INFO L158 Benchmark]: TraceAbstraction took 310.35ms. Allocated memory is still 132.1MB. Free memory was 70.4MB in the beginning and 98.1MB in the end (delta: -27.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-12-14 04:44:03,678 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 97.2MB in the end (delta: 834.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:03,680 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.44ms. Allocated memory is still 132.1MB. Free memory was 100.6MB in the beginning and 94.1MB in the end (delta: 6.6MB). Peak memory consumption was 63.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.72ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 91.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 132.1MB. Free memory was 91.4MB in the beginning and 89.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.38ms. Allocated memory is still 132.1MB. Free memory was 89.3MB in the beginning and 71.0MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 310.35ms. Allocated memory is still 132.1MB. Free memory was 70.4MB in the beginning and 98.1MB in the end (delta: -27.6MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 132.1MB. Free memory was 98.1MB in the beginning and 97.2MB in the end (delta: 834.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1553, overapproximation of bitwiseAnd at line 1553. 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); [L1559] 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) [L1559] RET printLine("Calling bad()...") VAL [\old(argc)=6442450945, argc=6442450945, argv={6442450947:6442450946}, argv={6442450947:6442450946}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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 04:44:03,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d --- 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 04:44:05,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:44:05,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:44:05,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:44:05,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:44:05,258 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:44:05,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:44:05,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:44:05,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:44:05,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:44:05,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:44:05,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:44:05,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:44:05,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:44:05,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:44:05,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:44:05,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:44:05,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:44:05,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:44:05,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:44:05,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:44:05,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:44:05,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:44:05,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:44:05,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:44:05,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:44:05,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:44:05,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:44:05,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:44:05,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:44:05,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:44:05,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:44:05,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:44:05,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:44:05,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:44:05,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:44:05,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:44:05,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:44:05,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:44:05,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:44:05,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:44:05,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 04:44:05,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:44:05,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:44:05,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:44:05,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:44:05,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:44:05,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:44:05,319 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:44:05,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:44:05,320 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:44:05,320 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:44:05,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:44:05,320 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:44:05,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:44:05,321 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:44:05,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:44:05,323 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 04:44:05,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:44:05,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:44:05,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:44:05,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:44:05,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:44:05,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:44:05,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:44:05,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:05,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:44:05,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:44:05,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:44:05,325 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:44:05,325 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:44:05,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:44:05,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:44:05,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:44:05,326 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_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fe1bf2b9178b10b540fd64eafb8aa3f4168490ff64386b1ded9c9521e21aa6d [2022-12-14 04:44:05,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:44:05,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:44:05,589 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:44:05,590 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:44:05,591 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:44:05,592 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:08,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:44:08,480 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:44:08,480 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:08,498 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/93dea2b73/04f7bbcc95ac480e84fd3bdd0e7ab4bf/FLAG6a76badd0 [2022-12-14 04:44:08,513 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/data/93dea2b73/04f7bbcc95ac480e84fd3bdd0e7ab4bf [2022-12-14 04:44:08,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:44:08,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:44:08,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:08,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:44:08,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:44:08,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:08,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395105b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:08, skipping insertion in model container [2022-12-14 04:44:08,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:44:08" (1/1) ... [2022-12-14 04:44:08,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:44:08,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:44:08,876 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:44:09,219 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:44:09,224 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:09,225 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:09,226 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:09,227 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:09,245 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:44:09,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:09,257 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:44:09,270 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:44:09,303 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:44:09,304 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:09,305 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:44:09,306 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:09,307 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:44:09,310 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:44:09,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:44:09,393 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:44:09,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09 WrapperNode [2022-12-14 04:44:09,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:44:09,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:09,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:44:09,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:44:09,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,430 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-14 04:44:09,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:44:09,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:44:09,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:44:09,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:44:09,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,448 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:44:09,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:44:09,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:44:09,452 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:44:09,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (1/1) ... [2022-12-14 04:44:09,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:44:09,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:44:09,479 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:44:09,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:44:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 04:44:09,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 04:44:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 04:44:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:44:09,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:44:09,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:44:09,509 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 04:44:09,632 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:44:09,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:44:09,759 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:44:09,765 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:44:09,765 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:44:09,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09 BoogieIcfgContainer [2022-12-14 04:44:09,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:44:09,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:44:09,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:44:09,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:44:09,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:44:08" (1/3) ... [2022-12-14 04:44:09,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d4030d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:09, skipping insertion in model container [2022-12-14 04:44:09,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:44:09" (2/3) ... [2022-12-14 04:44:09,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d4030d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:44:09, skipping insertion in model container [2022-12-14 04:44:09,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09" (3/3) ... [2022-12-14 04:44:09,774 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_51_bad.i [2022-12-14 04:44:09,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:44:09,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:44:09,825 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:44:09,830 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;@2c50eac1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:44:09,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:44:09,834 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 04:44:09,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 04:44:09,839 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:44:09,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:44:09,840 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 04:44:09,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:44:09,844 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-12-14 04:44:09,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:44:09,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904249589] [2022-12-14 04:44:09,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:44:09,856 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 04:44:09,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:44:09,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 04:44:09,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 04:44:09,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:09,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:44:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:44:10,001 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 04:44:10,002 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:44:10,003 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 04:44:10,005 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 04:44:10,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 04:44:10,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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 04:44:10,210 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:44:10,214 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:44:10,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:44:10 BoogieIcfgContainer [2022-12-14 04:44:10,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:44:10,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:44:10,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:44:10,243 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:44:10,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:44:09" (3/4) ... [2022-12-14 04:44:10,245 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 04:44:10,271 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 04:44:10,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:44:10,272 INFO L158 Benchmark]: Toolchain (without parser) took 1755.34ms. Allocated memory is still 75.5MB. Free memory was 50.7MB in the beginning and 45.5MB in the end (delta: 5.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,272 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:44:10,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 875.14ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 43.3MB in the end (delta: 7.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,273 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.05ms. Allocated memory is still 75.5MB. Free memory was 43.3MB in the beginning and 40.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,273 INFO L158 Benchmark]: Boogie Preprocessor took 20.67ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 38.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,274 INFO L158 Benchmark]: RCFGBuilder took 315.39ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 44.5MB in the end (delta: -6.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,274 INFO L158 Benchmark]: TraceAbstraction took 473.29ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 48.0MB in the end (delta: -4.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,274 INFO L158 Benchmark]: Witness Printer took 28.43ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 45.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:44:10,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 875.14ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 43.3MB in the end (delta: 7.2MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.05ms. Allocated memory is still 75.5MB. Free memory was 43.3MB in the beginning and 40.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.67ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 38.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.39ms. Allocated memory is still 75.5MB. Free memory was 38.0MB in the beginning and 44.5MB in the end (delta: -6.4MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. * TraceAbstraction took 473.29ms. Allocated memory is still 75.5MB. Free memory was 43.7MB in the beginning and 48.0MB in the end (delta: -4.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 28.43ms. Allocated memory is still 75.5MB. Free memory was 48.0MB in the beginning and 45.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1567]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1559] 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) [L1559] 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] [L1560] CALL CWE191_Integer_Underflow__int_rand_predec_51_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] 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()=1, rand()=0, rand()=0, rand()=1073741823, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_predec_51b_badSink(data) [L1567] --data 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 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 04:44:10,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98bbfeb6-5331-4c0f-b6d6-a974c319acf4/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)